Sexual dimorphism is the condition where different sexes of the same species exhibit different morphological characteristics, including characteristics...

Look up dimorphism in Wiktionary, the free dictionary. Dimorphism or dimorphic may refer to: Dimorphic root systems, plant roots with two distinctive...

media related to Polymorphism. Allotropy Isomorphism (crystallography) Dimorphism (Wiktionary) Polyamorphism Disappearing polymorphs Chemical crystallography...

between males and females, also known as sexual dimorphism. In shorebirds, various sexual dimorphism is seen, including, but not limited to, size (e.g...

be used in signaling with other owls in low-light conditions. Sexual dimorphism is a physical difference between males and females of a species. Female...

and in automobiles. Some tarantula species exhibit pronounced sexual dimorphism. Males tend to be smaller (especially their abdomens, which can appear...

Crabs are decapod crustaceans, either the Brachyura (the "true crabs") or various groups within the closely related Anomura (hermit crabs and allies),...

Nuclear dimorphism is a term referred to the special characteristic of having two different kinds of nuclei in a cell. There are many differences between...

large size dimorphism, with females being larger than males. Conversely, the Lesbiini clade (coquettes) displays very little size dimorphism; males and...

and nickel (PdS and NiS). Its general formula is (Pt,Pd,Ni)S. It is a dimorph of braggite. It is mined as an ore of platinum and platinum group metals...

(raptors) are known to display patterns of sexual dimorphism. It is commonly believed that the dimorphisms found in raptors occur due to sexual selection...

Tortoises (/ˈtɔːrtəs.ɪz/ TOR-təs-iz) are reptiles of the family Testudinidae of the order Testudines (Latin for "tortoise"). Like other testudines, tortoises...

influenced indirectly (e.g., hormonally) by the Y-chromosome. Sexual dimorphism is a term for the genotypic and phenotypic differences between males and...

twinning called a fiveling with an apparent five-fold symmetry. It is a dimorph of cavansite. Pentagonite was first described in 1973 for an occurrence...

Sexual dimorphism is the condition where sexes of the same species exhibit different morphological characteristics, particularly characteristics not directly...

ISSN 0025-3162. S2CID 85256742. Saunders, W.B; Spinosa, C. (1978). "Sexual dimorphism in Nautilus from Palau". Paleobiology. 4 (3): 349–358. Bibcode:1978Pbio...

The cockatiel (Nymphicus hollandicus), also known as the weero/weiro or quarrion, is a species of small- to medium-sized parrot belonging to the cockatoo...

specimens, the sexual dimorphism in size of the American alligator is relatively modest among crocodilians. For contrast, the sexual dimorphism of saltwater crocodiles...

Sexual dimorphism in human physiology refers to the distinct physiological characteristics associated with either male or female humans. These differences...

in many species, adult males are visibly distinct sizes from females. Dimorphism is also found in physiological and behavioral responses to ovarian steroids...

The skull, or cranium, is typically a bony enclosure around the brain of a vertebrate. In some fish and amphibians, the skull is of cartilage. The skull...

they are sometimes hidden or completely absent. Animals showing this dimorphism include antelopes, musk-deer, camels, horses, wild boar, some apes, seals...

the expression of the dimorphism among primates and the fundamental causes of sexual dimorphism. Primates usually have dimorphism in body mass and canine...

amounts of calcium during pregnancy and lactation may be related to the dimorphism. Breastfeeding newborns, whose skeletons are growing, require high amounts...

Carletonite – KNa4Ca4Si8O18(CO3)4(OH,F)·H2O Cavansite – Ca(VO)Si4O10·4H2O    (dimorph of pentagonite) Chlorite group – (Al,Fe2+,Fe3+Li,Mg,Mn,Ni)5−6(Al,Fe3+,Si)4(O...

curved or corroded crystals no more than 0.15 mm in size. The tetragonal dimorph of khinite is called parakhinite. Both khinite and parakhinite were first...

Cu5(AsO4)2(OH)4. It forms a series with the phosphate pseudomalachite and is a dimorph of the triclinic cornubite. It is a green monoclinic mineral which forms...

Frond dimorphism refers to a difference in ferns between the fertile and sterile fronds. Since ferns, unlike flowering plants, bear spores on the leaf...

55 to 77 cm (22 to 30 in) long and weighs up to 16 kg (35 lb). Sexual dimorphism has been recorded in this species, with males being larger and heavier...

yellowish brown monoclinic crystals. It is the low temperature monoclinic dimorph of the tetragonal stolzite. It was discovered in 1897 at Broken Hill, New...

the chemical composition Pb9As4S15. It is considered a low-temperature dimorph of jordanite. Gratonite was discovered in 1939 at the Excelsior Mine, Cerro...

aggregates. It has a hardness of 3 and a specific gravity of 4.45. Enargite is dimorph of the tetragonal luzonite. It is a medium to low temperature hydrothermal...

Protohistorical Algerians and Punics in the region of Tunisia, found strong sexual dimorphism with male skulls being robust. Mediterranean elements were dominant, but...

mineral, a sulfide of silver and antimony with the formula AgSbS2. It is a dimorph of cuboargyrite. Originally discovered in the Freiberg district of Germany...

distribution centered on Palearctic and Americas. Often pronounced sexual dimorphism with males among the most colorful birds alive. Songs tend to be fairly...

specimens Moore's clytioides is based." (Rothschild quoted in Bingham) The dimorph or dissimilis form of this race is identical with that of P. clytia. Race...

fabianite, CaB30S(OH), and comparison with the structure of its synthetic dimorph" (PDF). Zeitschrift für Kristallographie. 132 (1–6): 241–254. Bibcode:1970ZK...

the Gulf of Mexico, is the only shark species known to display sexual dimorphism in the morphology of the head, and is one of two shark species known to...

and borate deposits. Inderite is a member of the inderite group, and a dimorph of kurnakovite. It contains boron, hydrogen, magnesium, and oxygen. It...

male-biased sexual dimorphism, although some orders do not show any bias or are significantly female-biased (Lagomorpha). Sexual size dimorphism increases with...

department of mineralogy of the British Museum (Natural History). Smithite is a dimorph of trechmannite. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols"...

Sexual dimorphism describes the morphological, physiological, and behavioral differences between males and females of the same species. Most primates are...

Part of a series on Biological sex Biological terms Sexual dimorphism Sexual differentiation Feminization Virilization Sex-determination system XY XO ZW...

orpiment may give it a pink or yellow hue. It can be associated with its dimorph claudetite (a monoclinic form of As2O3) as well as realgar (As4S4), orpiment...

Which direction they drift from wind influence is determined by their dimorphism. The man o' war has two forms of their enlarged pneumatophores that affect...

Sexual dimorphism in human bonding refers to the sex-based differences in how humans form, maintain, and experience social and emotional bonds, including...

description of the genus, Ctenorhachis may represent a short-spined sexual dimorph, although the authors find this unlikely. List of pelycosaurs Benson, R...

types of sexual dimorphism have been recorded in crab spiders. Some species exhibit color dimorphisms; however, the most apparent dimorphism is the difference...

sexual dimorphism, which is sometimes extremely pronounced; the females may be several orders of magnitude larger in mass than males. This dimorphism has...

Phenotypic switching is switching between multiple cellular morphologies. David R. Soll described two such systems: the first high frequency switching...

pp. 37–43. ISBN 978-0-674-02462-5. Coelho, J. R. (1997). "Sexual size dimorphism and flight behavior in cicada killers (Sphecius specio- 5M5)". Oikos....

physically alike (sexual monomorphism) or have physical differences (sexual dimorphism). In sexually dimorphic species, including most birds and mammals, the...

metallic prismatic to acicular crystals with monoclinic symmetry. It is a dimorph of the triclinic twinnite. It was first described in 1967 for an occurrence...

Sexual dimorphism in dinosaurs refers to the different physical characteristics of male and female dinosaurs of the same species. This means that the male...

A.M.G.O.D. (Allotropic/Metamorphic Genesis of Dimorphism) is the third studio album by Finnish industrial black metal band ...and Oceans. This album incorporates...

The true koels, Eudynamys, are a genus of cuckoos from Asia, Australia and the Pacific. They are large sexually dimorphic cuckoos that eat fruits and insects...

accepted subtypes vary widely in size. This is in part due to sexual dimorphism, as male brown bears average at least 30% larger than females in most...

period around the Ningaloo Reef and concluded the species exhibits sexual dimorphism with regard to size, with females growing larger than males. The study...

humans males. As in all archaic species, there is no evidence of sexual dimorphism in the Neanderthal pelvis; both males and females had large pelvic bones...

the dimorphism is not attributed to sexual selection. It is a response to ecological demands of egg deposition. Another example of extreme dimorphism in...

The phenotypic difference between males and females is called sexual dimorphism. Male grouse tend to be larger than female grouse, which seems to hold...

other traits, such as female-dominated social groups, reduced sexual dimorphism that makes females the same size as males, and even ratios of sexes in...

Male hamadryas baboons have large white manes. Baboons exhibit sexual dimorphism in size, colour, and canine teeth development. Baboons are diurnal and...

a new genus of Southeast Asian cyprinid fish with a remarkable sexual dimorphism, comprises the world's smallest vertebrate" (PDF). Proceedings of the...

molecular formula CaAl2O4. It is the low-pressure dimorph of CaAl2O4, of which the high-pressure dimorph is named dmitryivanovite. Krotite was reported in...

with small braincases. Their canine teeth are relatively long. Sexual dimorphism of the skull is more pronounced than in corsac foxes, with female red...

diving to great depths. Several species of toothed whales show sexual dimorphism, in which the males differ from the females, usually for purposes of sexual...

blue, buff or brown patches, and its tail is kept un-docked. Sexual dimorphism is common in the breed, with male dogs being typically twice the weight...

specific details of their mating systems less well understood. Sexual size dimorphism in Eunectes is the opposite of most other vertebrates. Females are larger...

distinctive, almost always a rich, bright blue. The color is the same as its dimorph, pentagonite, but the latter is generally much more spikey with bladed...

hominins are typically reconstructed as having thick hair and marked sexual dimorphism with males much larger than females, though relative male and female size...

genus, Macrodipteryx, it is native to Africa and displays extreme sexual dimorphism. During the breeding season, males will grow broad ornamental flight feathers...

1 in) and a crest on the top of its head. The species expresses sexual dimorphism: Females are a reddish olive color, and have a gray mask around the beak...

petrologist who died on a field expedition. It is the high-pressure CaAl2O4 dimorph of krotite. Glossary of meteoritics Monocalcium aluminate Warr, L.N. (2021)...

can be in size. Araneids often exhibit size dimorphism typically known as extreme sexual size dimorphism, due to the extent of differences in size. The...

The science of cockatiel colour genetics deals with the heredity of colour variation in the feathers of cockatiels, Nymphicus hollandicus. Colour mutations...

being slightly smaller and wider than that of the female. This sexual dimorphism is thought to be an explanation for the variation in size of certain ammonite...

characteristics that distinguish males and females. Puberty leads to sexual dimorphism through the development of the secondary sex characteristics, which further...

PMID 22504546. Lee, Jin-Won; Yoo, Jeong-chil (2004). "Effect of host egg color dimorphism on interactions between the vinous-throated parrotbill (Paradoxornis webbianus)...

PMC 1942120. PMID 17712410. Manzouri, A.; Savic, I. (2017). "Cerebral sex dimorphism and sexual orientation". Human Brain Mapping. 39 (3): 1175–1186. doi:10...

Catapleiite (Na2ZrSi3O9·2H2O) is a dimorph of gaidonnayite rarely found by itself. Its name derives from the Greek words "κατα" (kata) and "πλειον" (pleion)...

(7+1⁄4–13+1⁄4 lb). The southern pudu is only slightly taller and heavier. Sexual dimorphism is quite pronounced – in most species males tend to be larger than females...

on evolution. Sexual dimorphism is where the basic phenotypic traits vary between males and females of the same species. Dimorphism is found in both sex...

Arachnacris corporalis, the giant Malaysian katydid, giant long-legged katydid or giant katydid (not to be confused with Stilpnochlora couloniana, a species...

of the human breasts can be explained by the handicap theory of sexual dimorphism. This would see the explanation for larger breasts as them being an honest...

gorillas, orangutans and humans) in being smaller, exhibiting low sexual dimorphism, and not making nests. Like all of the apes, gibbons are tailless. Unlike...

researchers wrote. "Our analysis demonstrates that there is no functional dimorphism in response to visual sexual stimuli between men and women." Olfactory...

; Shea, B. T. (1995). "Ontogeny and the evolution of adult body size dimorphism in apes". American Journal of Primatology. 36 (1): 37–60. Bibcode:1995AmJPr...

Polistes carolina is one of two species of red paper wasp found in the eastern United States (the other being Polistes rubiginosus) and is noted for the...

two sexes emerge the dimorphism in the gamete structures and sizes may lead to further dimorphism in the species. Sexual dimorphism is often caused through...

between the extent of sexual size dimorphism and which sex is larger. Across species within a lineage, size dimorphism increases with increasing body size...

years, evidence for sexual dimorphism has been weakened. A 2005 study reported that previous claims of sexual dimorphism in crocodile chevron anatomy...

Pythagoreanism. He rejected the Aristotelian tradition, which portrayed sexual dimorphism as expressing a proper relation of those ruling (male) and those being...

The red-tailed black shark (Epalzeorhynchos bicolor; syn. Labeo bicolor), also known as the redtail shark, red tailed shark, and redtail sharkminnow, is...

zone which they inhabit. The deep-sea anglerfishes have extreme sexual dimorphism; the males are many times smaller than the females. To reproduce, a male...

females. The differences in wing length demonstrate a distinct sexual dimorphism, allowing each sex to best exploit resources in an area. Their primary...

The hip bone (os coxae, innominate bone, or coxal bone) is a large flat bone, constricted in the center and expanded above and below. In some vertebrates...

Platonic ideal of absolute sex chromosome, gonadal, genital, and hormonal dimorphism"; these publications have been widely quoted by intersex activists. Of...

animals. According to Scott D. Sampson, if ceratopsids were to have sexual dimorphism modern ecological analogues suggest it would be in their mating signals...

consequences, such as intersexual coevolution, speciation, and sexual dimorphism. Harassment is a technique used by males of many species to force females...

overlapped in size with H. habilis, and may have shown marked sexual dimorphism. The new fossils confirm the distinctiveness of H. habilis and H. erectus...

; Cavener, M. W.; Hou, X; Pearce, D. L.; Lee, D. E. (2024). "Sexual dimorphisms in body proportions of Masai giraffes and the evolution of the giraffe's...

delivery of the sperm to the female. Members of many orders exhibit sexual dimorphism. Arachnids usually lay yolky eggs, which hatch into immatures that resemble...

habitat. Due to the extreme sexual dimorphism of the species as contrasted with the more modest-sized dimorphism of other species, the average length...

colour variations are called morphs. Like other falcons, it shows sexual dimorphism, with the female much larger than the male. For centuries, the gyrfalcon...

expressed by a particular sex. Extreme and (seemingly) maladaptive sexual dimorphism represented a paradox for evolutionary biologists from Charles Darwin's...

more recent analysis based on canine size and lack of canine sexual dimorphism indicates that Ardipithecus was characterised by reduced aggression, and...

shaped. Males and females are identical in plumage coloration, but sexual dimorphism is evident in the species, in that females are 25% larger than males....

Anthonie Cornelis Oudemans and Masauji Hachisuka to speculate about sexual dimorphism, ontogenic traits, seasonal variation, and even the existence of different...

The keyhole cichlid (Cleithracara maronii) is a cichlid fish endemic to tropical South America, occurring in the lower Orinoco Basin in Venezuela and river...

larger and stronger than the females, although the degree of sexual dimorphism varies greatly among species. Hominid teeth are similar to those of the...

2307/2423887. JSTOR 2423887. Lau, T. F.; Meyer-Rochow, V. B. (2006). "Sexual dimorphism in the compound eye of Rhagophthalmus ohbai (Coleoptera: Rhagophthalmidae):...

to demonstrate their fitness to be chosen by females, producing sexual dimorphism in secondary sexual characteristics, such as the ornate plumage of birds-of-paradise...

Phyllocrania paradoxa, common name ghost mantis, is a small species of mantis from Africa remarkable for its leaf-like body. It is one of the three species...

can be seen both between individuals and between the sexes as sexual dimorphism, between geographically separated populations, and between generations...

cock-of-the-rock is the national bird of Peru. Both known species exhibit sexual dimorphism: the males are bright orange or red with a prominent fan-shaped crests...

200 kg (7,100 lb) southern elephant seal. Several species exhibit sexual dimorphism. They have streamlined bodies and four limbs that are modified into flippers...

Papilio polyxenes, the (eastern) black swallowtail, American swallowtail or parsnip swallowtail, is a butterfly found throughout much of North America...

considered one of the biggest factors responsible for sex-immunologic dimorphism. Estrogen deficiency appears to play a role in the development of Sjögren's...

Part of a series on Biological sex Biological terms Sexual dimorphism Sexual differentiation Feminization Virilization Sex-determination system XY XO ZW...

with many birds of prey, the peregrine falcon displays marked sexual dimorphism in size, with the female measuring up to 30% larger than the male. Males...

for sexual signalling and marking territory. Mustelids exhibit sexual dimorphism, with males being larger than females, but degree varies between species...

addition to the shortened body form, A. spinifrons shows similar sexual dimorphism to that seen in true crabs, where males have a shorter pleon than females...

Carmenta bassiformis, the eupatorium borer moth or ironweed clearwing moth, is a moth of the family Sesiidae. It was described by Francis Walker in 1856...

Myrmaplata plataleoides, also called the red weaver-ant mimicking jumper, is a jumping spider that mimics the Asian weaver ant (Oecophylla smaragdina)...

sometimes known as a dewlap. Wattles are frequently organs of sexual dimorphism. In some birds, caruncles are erectile tissue and may or may not have...

is renowned for its courtship display. The bird shows extreme sexual dimorphism, with males nearly twice the size of females. The global population is...

The scalloped hammerhead (Sphyrna lewini) is a species of hammerhead shark in the family Sphyrnidae. It was originally known as Zygaena lewini. The Greek...

the body and is most easily recognized in species that display sexual dimorphism. An individual who displays this characteristic is called a gynandromorph...

Richard (December 1989). "Ecological Causes for the Evolution of Sexual Dimorphism: A Review of the Evidence". The Quarterly Review of Biology. 64 (4): 419–461...

the adults do not feed. Their mouth parts have been reduced. Sexual dimorphism is present in the adult stages of this species: Male More heavily marked...

and any other flatworms in that they are dioecious with distinct sexual dimorphism between male and female. Thousands of eggs are released and reach either...

Systomus orphoides, is a species of cyprinid fish native to Southeast Asia. It can reach a length of 21 centimetres (8.3 in) SL. It is closely related...

(September 1999). "Cortisol metabolism in healthy young adults: sexual dimorphism in activities of A-ring reductases, but not 11beta-hydroxysteroid dehydrogenases"...

large-sized birds with long legs and necks. They exhibit very little sexual dimorphism in size. The smallest species is usually considered the dwarf bittern...

26 centimetres (5.9 to 10.2 in) long, and they exhibit a strong sexual dimorphism. These fish are apex predators and have enormous jaws filled with fang-like...

garden spider Araneus diadematus: the roles of female hunger and mate size dimorphism". Animal Behaviour. 81 (4): 749–755. doi:10.1016/j.anbehav.2011.01.005...

length, and cell number seem to correlate with sexual orientation, and a dimorphism in its volume and of cells could bias the processing cues involved in...

scattering of blue light (the Tyndall effect). In most species, sexual dimorphism is limited. When clear distinctions do occur, size differences between...

The ringed kingfisher (Megaceryle torquata) is a large, conspicuous, and noisy kingfisher bird commonly found along the lower Rio Grande Valley in southeasternmost...

sexual selection. One explanation for the dimorphism observed in the N. pilipes species is sexual size dimorphism may have evolved due to selection favoring...

grasping prey. H. coronatus shows some of the most pronounced size sexual dimorphism of any species of mantis; males can be less than half the size of females...

is somewhat arbitrary. Primates exhibit the highest levels of sexual dimorphism amongst mammals, with males generally being larger than females within...

(49 inches) long. The species therefore exhibits female-dominant sexual dimorphism. Dogfish sharks have slate-grey or grey-brown skin with white dots that...

bird, measuring 11.5–13 cm (4.5–5.1 in) in length. It displays sexual dimorphism in its coloration; the male is vibrant blue in the summer, with brightly...

could still be attributed to individual or population variation or sexual dimorphism. Daeodon shoshonensis is the largest-known entelodont; known adult individuals...

these two species are distinct. L. sclopetarius exhibit a slight sexual dimorphism, where females are heavier than males. Females typically weigh around...

of about 100 centimetres (39 in; 3.3 ft). It does not exhibit sexual dimorphism. It is the largest member of the clade Afroinsectiphilia. The aardvark...

Sepioteuthis lessoniana, commonly known as the bigfin reef squid, tiger squid, glitter squid, oval squid, or northern calamari, is a species complex in...

sexual dimorphism evident after birth, adults were found to demonstrate more dimorphism than children, who show the same extent of dimorphism as fetuses...

than one species. Dinornis seems to have had the most pronounced sexual dimorphism of all moa, with females being up to twice as tall and three times as...

lacked teeth. Some groups developed elaborate head crests with sexual dimorphism. Since 2010 it is understood that many species, the basal Monofenestrata...

Maiasaura (from Greek: μαῖα, lit. 'good mother' and Greek: σαύρα, the feminine form of saurus, lit. 'reptile') is a large herbivorous saurolophine hadrosaurid...

species have lower levels of male aggression, competition and little sexual dimorphism. Zoologists and biologists now have evidence that monogamous pairs of...

Falcatus was a Carboniferous holocephalan, with a high degree of sexual dimorphism. Dracopristis was a Ctenacanthiform elasmobranch from the late Carboniferous...

male and female horseshoe crabs. This phenomenon is known as sexual size dimorphism and results in the females having a larger average size than males. The...

Antheraea polyphemus, the Polyphemus moth, is a North American member of the family Saturniidae, the giant silk moths. It is a tan-colored moth, with an...

The chestnut-breasted quail-thrush (Cinclosoma castaneothorax) is a small endemic Australian bird which is predominantly found within the semi-arid deserts...

female condor is smaller than the male, an exception to the usual sexual dimorphism seen in birds of prey. The condor is primarily a scavenger, feeding on...

attract the swimming sperm cells. Anisogamy is a core element of sexual dimorphism that helps to explain phenotypic differences between sexes. Researchers...

species. Most bovids exhibit sexual dimorphism, with males usually larger as well as heavier than females. Sexual dimorphism is more prominent in medium- to...

Ocythoe tuberculata, also known as the tuberculate pelagic octopus or football octopus, is a pelagic octopus. It is the only known species in the family...

and black markings on its abdomen. Argiope bruennichi exhibit sexual dimorphism. The adult males average a length of approximately 4.5 mm while the adult...

Stupendemys is an extinct genus of freshwater side-necked turtle, belonging to the family Podocnemididae. It is the largest freshwater turtle known to...

Saara hardwickii, commonly known as Hardwicke's spiny-tailed lizard or the Indian spiny-tailed lizard is a species of lizard in the family Agamidae. The...

C; Verdolini, Katherine (2006). "Dominance and the evolution of sexual dimorphism in human voice pitch". Evolution and Human Behavior. 27 (4): 283–296....

elongated than females, with significantly longer antennae, but the sexual dimorphism is not as apparent as in many of the Tiphiidae and Thynnidae. Scoliid...

Calumma tarzan, also known commonly as the Tarzan chameleon or Tarzan's chameleon, is a species of lizard in the family Chamaeleonidae. The species is...

and the fright reaction that is present in other ostariophysans. Sexual dimorphism is exhibited in most species in that mature females are typically larger...

result of homoplasy. Turtles of the genus Apalone exhibit marked sexual dimorphism. In carapace length, females grow to about twice the size of males. In...

specimens, containing two forms has been determined to be evidence of sexual dimorphism within that species, the largest known. Males were more robust and heavier...

Understanding the contribution of LFY and PEBP flowering genes to fern leaf dimorphism – Botany 2019. Fern Structure – Forest Service. Fern Structure – Forest...

involve large fluctuations in hormones and there is evidence of sexual dimorphism between males and females. Squirrel monkeys can only sweat through the...

cases of sexual dimorphism in plant architecture and flower production in some species. Below are some specific examples of sexual dimorphisms in flowering...

thought to be controlled by sex hormones and growth hormone (GH). Sexual dimorphism in distribution of gynoid fat was thought to emerge around puberty, but...

Megaphragma is a genus of wasp in the family Trichogrammatidae. It contains some of the smallest known insects, Megaphragma caribea (170 μm) and Megaphragma...

The Dytiscidae, from the Ancient Greek word δυτικός (dutikós), meaning "able to dive", are the predaceous diving beetles, a family of water beetles. They...

The Oriental carpenter bee, Xylocopa nasalis, or Xylocopa (Biluna) nasalis, is a species of carpenter bee. It is widely distributed in Southeast Asian...

crush the bodies of hard shelled prey. Male stingrays display sexual dimorphism by developing cusps, or pointed ends, to some of their teeth. During mating...

Araneidae. Like other spiders of the genus, they display extreme sexual dimorphism, with large females and small males. Females vary in total body length...

Africa. It is an intra-African migrant and displays remarkable sexual dimorphism in the breeding season. Their preferred habitat south of the equator is...

63 cm (25 in) is the largest parasitic cuckoo. Generally, little sexual dimorphism in size occurs, but where it exists, it can be either the male or the...

The Argentine black and white tegu (Salvator merianae), also commonly known as the Argentine giant tegu, the black and white tegu, the blue tegu, and the...

described in 1849 by George French Angas and exhibits the highest sexual dimorphism among the spiral-horned antelopes. It is not to be confused with the endangered...

fins to the tip of the two long tentacles. Giant squid exhibit sexual dimorphism. Maximum weight is estimated at 275 kg (606 lb) for females and 150 kg...

giant wētā (Deinacrida rugosa) likely led to the development of sexual dimorphism. where males develop lighter, more slender bodies and longer legs allows...

colloquially as a "peacock". The Indian peafowl displays a marked form of sexual dimorphism. The brightly coloured male has a blue coloured head with a fan-shaped...

reproduction. Little is known about growth rates or a possible sexual dimorphism. From the parental care indicated by the large size of the young, it can...

proportionally with latitude, in contradiction to Bergmann's rule. Sexual dimorphism in size is pronounced, with males being roughly 25% larger than females...

containing 11 such oocytes, each approximately 2 mm in diameter. Sexual dimorphism is best documented in A. minotaur, the only species known from both sexes...

They unusually exhibit reverse sexual dichromatism, a form of sexual dimorphism where the two sexes have differential coloration with the females being...

Herpetogramma aquilonalis is a species of pearl moth in the family Crambidae. Their wingspan is on average 23-27 mm and are generally white with grey or...

different cephalopod order, Nautilida. Argonauts exhibit extreme sexual dimorphism in size and lifespan. Females grow up to 10 cm and make shells up to 30 cm...

Pelvicachromis pulcher is a freshwater fish of the cichlid family, endemic to Nigeria and Cameroon. It is popular amongst aquarium hobbyists, and is most...

measures just 20 cm (7.9 in). As with hawks and owls, falcons exhibit sexual dimorphism, with the females typically larger than the males, thus allowing a wider...

However, the fact that Ar. ramidus shares with bonobos reduced sexual dimorphism, and a more paedomorphic form relative to chimpanzees, suggests that the...

Sweden and at the Sterling Mine in New Jersey, United States. It is a dimorph of sarkinite and is isostructural with adamite. The name, for the biblical...

PMID 15817436. Van Valkenburgh, Blaire; Sacco, Tyson (2002). "Sexual dimorphism, social behavior, and intrasexual competition in large Pleistocene carnivorans"...

Although the subject of sexual dimorphism is not in itself controversial, the measures by which it is assessed differ widely. Most of the measures are...

yellow-orange band that crosses the 3rd abdominal segment. There is sexual dimorphism in drone flies: males tend to have lighter patterns than females. Males...

longest reported skull measured from 23.5 to 35 cm (9.3 to 13.8 in). Sexual dimorphism can be seen in the tendency for females to have slenderer and more pointed...

Ixodes holocyclus, commonly known as the Australian paralysis tick, is one of about 75 species in the Australian tick fauna and is considered the most...

sometimes a female is more than twice as heavy as her mate. This sexual dimorphism is sometimes most extreme in specialized bird-eaters, such as the Accipiter...

across individuals of the same species, but there is no evidence of sexual dimorphism. They had a prominent parrot-like beak at the tip of the jaws. P. andrewsi...

subject of scientific research. Differences among the sexes (called sexual dimorphism) within a given species are considered by evolutionary biologists to be...

spread alarm, she has a pheromone to attract male mates. Sexual and caste dimorphism is very pronounced in this species. While all individuals have a distinctive...

this genus are sexual dichromatism in fur colour and pattern, sexual dimorphism, small and internally furry ears, vertically slit pupils, and a protruding...

Female and male dwarf gouramis (Trichogaster lalius) showing sexual dimorphism Macropodus erythropterus Paradise fish (Macropodus opercularis) Giant...

"shimmering light-blue mirrors". The blue morpho species exhibit sexual dimorphism. In some species (for instance M.adonis, M. eugenia, M. aega, M. cypris...

compared to their male counterparts [17,18,20,23,24,59,88,176]. This sexual dimorphism was only observed in adult rats, suggesting that gonadal hormones secreted...

fine-grained inclusions. It crystallizes in the isometric system, unlike its dimorph, bellidoite, which crystallizes in the tetragonal system. The crystals...

using simple polymerase chain reaction product size dimorphism, presence/absence, restriction dimorphism, or even sequencing. Ammer, F. K.; Wood, P. B.; McPherson...

phylogenomic and comparative analyses unravel a complex evolution of sexual size dimorphism". Systematic Biology. 68 (4): 555–72. doi:10.1093/sysbio/syy082. PMC 6568015...

represents some sort of dimorphism in the population of Coelophysis, probably sexual dimorphism. Raath agreed that dimorphism in Coelophysis is evidenced...

255 lb) and 795 g (1.753 lb), respectively, also the highest size sexual dimorphism in the species. Size variation in body mass reveals that the red-tailed...

Betta antoni is a species of gourami endemic to the Sanggau area in the Kapuas region. The species name antoni is named after Irwan Anton "in recognition...

females are relatively unknown; the few that do show a male-biased sexual dimorphism. Examples include Allocosa brasiliensis (a wolf spider), Evarcha culicivora...

reach a length of about 4.5–5.5 millimetres (0.18–0.22 in). It is a sexual dimorph species. Males show dark markings on the face with round spots. Females...

The Abyssinian scimitarbill (Rhinopomastus minor) is a species of bird in the family Phoeniculidae. The term Abyssinia, is an old name for the region of...

Pelvicachromis drachenfelsi is a freshwater fish of the cichlid family, endemic to the Wouri River system near the town of Yabassi in Cameroon. Specimens...

display considerable sexual dimorphism, with brighter coloration and greater size in males being typical. While such dimorphism is widely known in passerines...

The antilopine kangaroo is one of a few macropods to display sexual dimorphism, with the male being mostly a reddish colour above, and females being...

105 cm long with predominantly black plumage. The species exhibits sexual dimorphism; the female is larger than the adult male and has a white throat and breast...

55 to 0.71 in) and the tarsus is 2 to 2.3 cm (0.79 to 0.91 in). Sexual dimorphism is slight with males being larger than their mates. A study indicated...

genus Dinornis, the giant moa of New Zealand. (Some moa exhibited sexual dimorphism, with females tending to be larger than males.) Eggs assigned to this...

patch on their white breast. Males and females exhibit marked sexual dimorphism. Breeding habitat consists of cool-temperate open deciduous woods throughout...

Tanaka, G. M. Jr; Noll, F. B. & Wenzel, J. W. (11 June 2009). "Discrete dimorphism among castes of the bald-faced hornet Dolichovespula maculata (Hymenoptera:...

this magpie-like species is comprised by its very long tail. Less sexual dimorphism is seen in plumage, but with only 25 species showing such differences...

Anthropologist Owen Lovejoy has suggested that bipedalism was a result of sexual dimorphism in efforts to help with the collecting of food. In his Male Provisioning...

; Litvaitis, J.A.; Stevens, C.L. (1989). "Prey selection about sexual dimorphism of fishers (Martes pennanti) in New Hampshire". Journal of Mammalogy....

The carpometacarpal (CMC) joints are five joints in the wrist that articulate the distal row of carpal bones and the proximal bases of the five metacarpal...

Spirama helicina is a moth of the family Erebidae first described by Jacob Hübner in 1824. In older texts, the species was classified as morph of Spirama...

'prickle-eye', after a spine beneath each eye. There is evidence of sexual dimorphism in this species with studies showing that males have one hard ray in their...

Left: Papillary ridges of palm Right: Sexual dimorphism...

hairlessness, obligate bipedalism, increased brain size and decreased sexual dimorphism (neoteny). The relationship between all these changes is the subject of...

In vertebrate anatomy, the hip, or coxa (pl.: coxae) in medical terminology, refers to either an anatomical region or a joint on the outer (lateral) side...

More generally, intrasexual selection is often associated with sexual dimorphism, including differences in body size between males and females of a species...

be almost completely superhydrophobic. Morpho peleides have low sexual dimorphism in both wing pattern and overall size. On males, the blue iridescence...

Sternotherus odoratus is a species of small turtle in the family Kinosternidae. The species is native to southeastern Canada and much of the Eastern United...

foraging trips, smaller and more abundant prey items, and greater sexual dimorphism. For these reasons, the distinction remains useful. Fur seals comprise...

"eclipse" plumage. Southern resident species typically show less sexual dimorphism, although there are exceptions such as the paradise shelduck of New Zealand...

which are important factors in the evolution of sex differences (sexual dimorphism): intrasexual selection (involves competition with those of the same sex...

kilograms (79 pounds) and reach lengths up to 122 cm (4 ft 0 in). Sexual dimorphism is extreme; male elephant seals weigh up to 10 times more than females...

compared to orangutans (though this is partly due to the great sexual dimorphism exhibited in gorillas and orangutans). Baab concluded that H. erectus...

Hermaphrodite Plant reproductive morphology Self-incompatibility in plants Sexual dimorphism Trioecy Kurlansky, Mindy B. (2002). "Physalia physalis". Animal Diversity...

diverse Japanese rhinoceros beetle populations. With regards to sexual dimorphisms, Japanese rhinoceros beetles suffer male-biased predation by both avian...

when not in use. Recent work suggests that the pedipalps display sexual dimorphism in their size and shape. Pedipalp anatomy varies strongly with species...

Polychaeta, phylum Annelida) noted for displaying exceptional sexual dimorphism and for the biocidal properties of a pigment in its skin. The species...

or cream all over. The dog should have a "vigorous" appearance. Sexual dimorphism is evident in this breed, with males being significantly larger than females...

cancriformis, occurs in the Americas. Members of the genus exhibit strong sexual dimorphism. Females are several times larger than males, which lack prominent spines...

Allotoca goslinei, commonly known as the banded allotoca or tiro rayado in Spanish, is a species of fish in the family Goodeidae. First described in 1987...

Wüthrich, Marcel; Klein, Bruce S. (28 April 2006). "Global control of dimorphism and virulence in fungi". Science. 312 (5773): 583–588. Bibcode:2006Sci...

Cyphophthalmi is a suborder of harvestmen, colloquially known as mite harvestmen. Cyphophthalmi comprises 36 genera, and more than two hundred described...

families Pomacentridae and Synodontidae). Males and females exhibit sexual dimorphism in hunting behavior, as adult females, which are significantly larger...

better understanding of the ranges of morphic variability and sexual dimorphism within the species. A more complete skeleton of a related hominid, Ardipithecus...

The black marlin (Istiompax indica) is a species of marlin found in tropical and subtropical areas of the Indian and Pacific Oceans approximately between...

variety of gross morphological traits of the human skull demonstrate sexual dimorphism, such as the median nuchal line, mastoid processes, supraorbital margin...

parks, open woodland, fens, hedgerows, heaths, and moors. A striking dimorphism exists between the male and the female moths of this species. The male...

pickerel frogs to be fit for terrestrial life. Pickerel frogs display sexual dimorphism; the females are typically larger and darker in color than the males....

Issus montenegrus is a species of beetle in the family Issidae found in Montenegro. This species is endemic to Montenegro, where it is found in the regions...

Females are somewhat less colorful than the male, an example of sexual dimorphism. While they have a matching yellow-striped thorax, their abdomen has a...

the sexes, with the sexual dimorphism in humans being more pronounced than that of chimpanzees, but less than the dimorphism found in gorillas. The colouration...

yielding nutrition to the worms. Osedax exhibit very drastic sexual dimorphism, with females being >20,000 times larger than males. Males are paedomorphic...

family Anatidae have bright, colourful plumage, exhibiting strong sexual dimorphism. However, they moult into a dull plumage after breeding in mid-summer...

the dome shape in the adult stage. It could also be evidence of sexual dimorphism with the female being more flat-headed. Ceratopsians, or "horned-faces"...

insulating layer of blubber helps maintain their body temperature. Sexual dimorphism is the condition where sexes of the same species exhibit different morphological...

weighs 15 to 30 g (0.53 to 1.06 oz). The species exhibits slight sexual dimorphism in size, with the male being slightly larger than the female. The dorsal...

Dictyotene Dideoxy method Differentiation Dihybrid Dihybrid cross Dimerization Dimorphism Dioecious plant Diploid Directed evolution Directed mutagenesis Directed...

The yellow-footed tortoise (Chelonoidis denticulatus), also known as the Brazilian giant tortoise, is a species of tortoise in the family Testudinidae...

The red-crested korhaan or red-crested bustard (Lophotis ruficrista) is a species of bird in the family Otididae. It is found in Angola, Botswana, Eswatini...

to sea lions, fur seals are generally smaller, exhibit greater sexual dimorphism, eat smaller prey and go on longer foraging trips; and, of course, there...

1 kg (22–62 lb) based on volumetric analysis. There was slight sexual dimorphism, with the males being larger than females on average. Males weighed on...

ft), double the size of female tusks. Despite the link between sexual dimorphism and the length of the tusk, both males and females may use tusks in aggressive...

The shield-tailed agama (Xenagama taylori), also known commonly as the dwarf shield-tailed agama, Taylor's strange agama, and the turnip-tailed agama,...

beetles exhibit sexual dimorphism. In particular, they exhibit dimorphism in the adhesive tarsal setae. The paper "Sexual dimorphism in the attachment ability...

et al. 1978; Christian et al. 1995). There is also evidence of sexual dimorphism both in the robustness of the skeleton and in the relative height of the...

Augochlorella is a genus in the bee family Halictidae, commonly called sweat bees. They display metallic coloration, ranging from reddish to gold to bluish...

 115–. ISBN 978-81-906757-4-1. Geber, Monica A. (1999). Gender and sexual dimorphism in flowering plants. Berlin: Springer. ISBN 3-540-64597-7. p. 4 Testolin...

Pugettia producta, known as the northern kelp crab or shield-backed kelp crab, is a species of crab in the family Epialtidae. Its upper carapace is typically...

descendant. This species is most well known for showing unique sexual dimorphism among rhinos. Iranotherium is only known from cranial material, and rare...

of unfavorable climatic change. Platybelodon exhibited strong sexual dimorphism. Males had larger and more robust upper tusks, indicating a strong role...

1996. pg. 93. ISBN 0-7513-0436-0 Wilhelm, G., et al. (2011). Sexual dimorphism in head structures of the weevil Rhopalapion longirostre (Olivier 1807)...

and the Russian Far East to Korea and Japan. The map exhibits seasonal dimorphism which means it has two different forms, depending on whether its larva...

ISBN 978-097-131-9. Luiselli, L. & Angelici, F. M. (1998). "Sexual size dimorphism and natural history traits are correlated with intersexual dietary divergence...

Advances in the Study of Behavior, vol. 35 French and Snowdon. Sexual dimorphism in responses to unfamiliar intruders in the tamarin, Saguinus oedipus...

Externally, many marine animals, even when spawning, show little sexual dimorphism (difference in body shape or size) or little difference in colouration...

and weigh over 900 kg (2,000 lb). Crocodilians show pronounced sexual dimorphism, with males growing much larger and more rapidly than females. Despite...

Holocene in Cambodia and Vietnam. Orangutans display significant sexual dimorphism; females typically stand 115 cm (45 in) tall and weigh around 37 kg (82 lb)...

doi:10.1164/rccm.200208-876OC. PMID 12773331. Glucksman A (1981). Sexual Dimorphism in Human and Mammalian Biology and Pathology. Academic Press. pp. 66–75...

populations are claimed to have decreased in size and increased their sexual dimorphism, but this was dismissed in a 2012 study. The appearance of the woolly...

Mantellidae. It is endemic to Madagascar. This species does not show sexual dimorphism. IUCN SSC Amphibian Specialist Group (2015). "Boophis arcanus". IUCN Red...

wings with yellow, red, white and blue markings. The species is sexually dimorph, with males smaller than females and having a smaller white patch at the...

coloured and some, multi-coloured. Most parrots exhibit little or no sexual dimorphism in the visual spectrum. The most important components of most parrots'...

D'Orbigny's slider (Trachemys dorbigni) also commonly known as the black-bellied slider, and in Brazil as tartaruga-tigre or tartaruga-tigre-d'água (which...

96 °F). They prefer temperatures around 18.4 °C (65.12 °F). The sexual dimorphism of the white banded crab spider has resulted in significantly smaller...

including phenomena such as flightless morphs, parthenogenesis, sexual dimorphism, and eusociality. The phylogeny of the extant Sternorrhyncha, from a 2024...

Odonata. V. The waterfall-dwellers: Thaumatoneura imagos and possible male dimorphism". Entomological News and Proceedings of the Entomological Section. 25...

The angulate tortoise (Chersina angulata) is a species of tortoise found in dry areas and coastal scrub vegetation in South Africa. It is the only living...

deter, distract or otherwise deceive predators". The species shows sexual dimorphism, as in most Lepidoptera. Female moths of this species tend to be larger...

White-bellied heron (Ardea insignis). It exhibits a minor degree of sexual dimorphism; males are slightly larger than females, but otherwise the sexes are not...

831–846 Andersson, S; Rnborg, J; Andersson, M (1998). "Ultraviolet sexual dimorphism and assortative mating in blue tits". Proc Biol Sci. 265 (1395): 445–450...

Differences between P. bugtiense and P. transouralicum may be due to sexual dimorphism, which would make them the same species. The taxonomic history of Paraceratherium...

"Sexual Dimorphism and Mortality Bias in a Small Miocene North American Rhino, Menoceras arikarense: Insights into the Coevolution of Sexual Dimorphism and...

they'd be especially vulnerable to getting trapped. No evidence of sexual dimorphism in Glyptodon has been described, but it has been observed in the close...

Forbes, Mark R. L. (1995). "Sex ratios, mating behavior and sexual size dimorphism of the common water snake, Nerodia sipedon ". Behavioral Ecology and Sociobiology...

sample of E. grangeri from Mongolia reportedly shows evidence for sexual dimorphism, since the population includes some individuals with paired horns at the...

original on February 27, 2024. Kawano, Kazuo (1 March 2006). "Sexual Dimorphism and the Making of Oversized Male Characters in Beetles (Coleoptera)"....

The Helanshan variant is smaller in size, with less pronounced sexual dimorphism and straighter horns. The bharal is mainly a grazer, feeding on grasses...

hominids' cause of death and some debate over their species and sexual dimorphism. In the late 1960s, French paleoanthropologist Maurice Taieb began geological...

1186/1471-2148-10-86. PMC 2858742. PMID 20353556. Plavcan, J. M. (2001). "Sexual dimorphism in primate evolution". American Journal of Physical Anthropology. 116...

in Lake Baikal at 455 metres (1,500 ft). Some amphipods exhibit sexual dimorphism. In dimorphic species, males are usually larger than females, although...

Retrieved 21 August 2012. Koffijberg, K.; Van Eerden, M.R. (1995). "Sexual dimorphism in the cormorant Phalacrocorax carbo sinensis: possible implications for...

cubs found in the predator traps. However, given its level of sexual dimorphism, adults had a higher degree of tolerance for one another and young adults...

Hair-pencils and coremata are pheromone signaling structures present in lepidopteran males. Males use hair-pencils in courtship behaviors with females...

(1995). "Selection on Fecundity and Variation in the Degree of Sexual Size Dimorphism Among Spider Species (Class Araneae)". Evolution. 49 (4): 776–781. doi:10...

populations are either long-winged, wing-dimorphic, or short-winged. Wing dimorphism consists of summer gerrid populations evolving different length wings...

questioned in a follow-up study by the same group which found that the sexual dimorphism of the BSTc is not significant until adulthood (approximately 22 years...

Citheronia laocoon is a species of moth in the family Saturniidae. It is found from the Guianas south to northern Argentina. The moths are relatively large...

Metaboric acid occurs naturally as the mineral metaborite and its monoclinic dimorph clinometaborite. The main forms of metaboric acid are: Modification III...

evolutionary history. Carotenoid coloration exhibits high levels of sexual dimorphism, with adult male birds generally displaying more vibrant coloration than...

mesopelagic zone of all oceans and show diel vertical migration and sexual dimorphism (males are smaller, have larger eyes and larger postorbital photophores...

reported to bite humans. Species Leptoglossus australis engage in sexual dimorphism by the functional morphology of their femurs. Members of L. australis...

Parachanna africana, the African snakehead or Niger snakehead, is a species of fish from west-central Africa. Little is published on its biology. Limited...

general chemical formula of MnSiO3. It is the high-pressure, low-temperature dimorph of rhodonite. It was first described in 1913 and named for the mineral...

female ossicones vary in structure and purpose (a manifestation of sexual dimorphism). Males typically have thicker ossicones that become bald on top due to...

S2CID 25372591. McCombe PA, Greer JM, Mackay IR (December 2009). "Sexual dimorphism in autoimmune disease". Current Molecular Medicine. 9 (9): 1058–1079....

pheasant family in length diversity. Most accipitrids exhibit sexual dimorphism in size, although, unusually for birds, it is the females that are larger...

and function to the ossicones of a giraffe. The okapi exhibits sexual dimorphism, with females 4.2 cm (1.7 in) taller on average, slightly redder, and...

sexually dimorphic species, with males typically larger than females. Sexual dimorphism has likely evolved due to increased mate competition arising through social...

ventral field. Prominent black patches surround its lips and eyes. Sexual dimorphism is apparent in body size, with mature females being longer than males...

Larviform female is a biological phenomenon occurring in some insect species, where the females in the adult stage of metamorphosis resemble the larvae...

foraging trips, smaller and more abundant prey items, and greater sexual dimorphism. All sea lions have certain features in common, in particular their coarse...

sexual dimorphism between species. Although sexual dimorphism of Onuf's nucleus is present in all species, the extent of the sexual dimorphism varies...

during mating. Many species of spiders exhibit a great deal of sexual dimorphism. Spiders, unlike insects, have only two main body parts (tagmata) instead...

as the animal matured. An alternative proposed explanation is sexual dimorphism, an occurrence not well-documented in non-avian dinosaurs but common in...

smaller, at around 71 cm (28 in) long. Frigatebirds exhibit marked sexual dimorphism; females are larger and up to 25 percent heavier than males, and generally...

immobile pupal stage. Some, such as stag beetles, have a marked sexual dimorphism, the males possessing enormously enlarged mandibles which they use to...

secondary sex characteristics, and often represent an increase in sexual dimorphism.[clarification needed] After sexual maturity is achieved,[clarification...

budget between males and females, possibly explaining the lack of sexual dimorphism. Burchell's zebras are described as being striped on the head, the neck...

Litteratura Serpentium, 15(5), 128-132. Shine, R. (1994). Sexual size dimorphism in snakes revisited. Copeia, 326-346. Williams, K. L. (1994). Lampropeltis...

; Shea, B. T. (1995). "Ontogeny and the evolution of adult body size dimorphism in apes". American Journal of Primatology. 36 (1): 37–60. Bibcode:1995AmJPr...

often found in polygynous mating systems is extreme sexual dimorphism. Sexual dimorphism, or the difference in size or appearance between males and females...

and also helps them retain moisture. Mutillids exhibit extreme sexual dimorphism. As in some related families in the Vespoidea, males have wings, but females...

(240–635 lb), and the lighter females 100–213 kg (220–470 lb). Sexual dimorphism is prominent; while females and juveniles are orange to tawny, adult males...

body mass than nominate race bears and with more pronounced size sexual dimorphism. They are 60–92 cm (2 ft 0 in – 3 ft 0 in) high at the shoulder, and have...

coleopterology, giraffe weevils are of interest because they exhibit sexual dimorphism. There are other beetle species that share the common name giraffe weevil...

watch over nymphs until their second molt. As the nymphs molt, sexual dimorphism such as differences in pincer shapes begins to show. Extant Dermaptera...

The heliocausine wasps are notable for their marked and unusual sexual dimorphism. Males are larger than females (males are smaller than females in most...

The red-browed fig parrot (Cyclopsitta diophthalma macleayana), also known as the Macleay's fig parrot, is one of three Australian subspecies of the Double-eyed...

are rare. Regarding body length and mass, this species exhibits sexual dimorphism, as females are significantly larger and heavier than males. Of 75 individuals...

clubbing device. There have been several findings of possible sexual dimorphism in stegosaurids. Saitta (2015) presents evidence of two morphs of Hesperosaurus...

PMID 11396580. Berry, James F.; Shine, Richard (1980). "Sexual Size Dimorphism and Sexual Selection in Turtles (order Testudines)". Oecologia. 44 (2):...

production of workers and gynes (actual or potential queens) can cause size dimorphisms between different castes, as size is strongly influenced by the season...

females are similar in size and appearance, so display little sexual dimorphism. Females tend to be heavier, but males tend to have longer linear measurements...

are present, sex can be determined by looking for distinctive sexual dimorphisms. When available, the pelvis is extremely useful in the determination...

ratio, and interpreted them as different sexes. Bennett tested for sexual dimorphism in Rhamphorhynchus by using a statistical analysis, and found that the...

Temminck, 1813 – Java and Bali The species exhibits significant sexual dimorphism. Males are referred to as "roosters", while females are referred to as...

the genus. Alternatively, the differences could be explained by sexual dimorphism within the species. The body length estimations of Vasuki are derived...

girl. Anatomically the general female characteristic of human sexual dimorphism is the human female reproductive system, which includes the ovaries, fallopian...

the tibia of their hind legs have a flat, leaf-like appearance. Sexual dimorphism is relatively limited. The hind femora and shape of the expanded hind...

(75 cm) and a maximum unofficial weight of 25 lb 1 oz (11.4 kg). Sexual dimorphism is found, with the female larger than the male. Largemouth bass prefer...

Although in all these examples the second form has fallen out of usage, the dimorphism is thought to reflect the several-hundred-year period during which Italian...

and at levels significantly higher than in females, highlighting sexual dimorphism in hormone production. The body is small compared to the wings. The upper...

 365. ISBN 978-0-08-049015-1. Pietsch, Theodore W. (25 August 2005). "Dimorphism, parasitism, and sex revisited: modes of reproduction among deep-sea ceratioid...

between species, blends with the small melon without a crease. Sexual dimorphism is poorly known, but the females tend to be the same size or larger than...

characterized in males by an increase in testosterone, exaggerated sexual dimorphisms, increased aggression, as well as increased interest in females. The...

solitaires grew to the size of swans, and demonstrated pronounced sexual dimorphism. Males were much larger than females and measured up to 75.7–90 centimetres...

adornments on its anal and ventral fins, absent in N. unifasciatus. Sexual dimorphism in this species is typical of many species in the genus Nannostomus. The...

feed young home-bred females to birds as soon as crickets display sexual dimorphism. There is one notable exception: males of Homoeogryllus japonicus (suzumushi...

scientific explanation for the evolution of pigmentary traits. Sexual dimorphism suggests the presence of sexual selection. The earliest homininae were...

nematodes infecting humans. The length of specimens exhibits extreme sexual dimorphism, as the longest recorded male Guinea worm is only 4 cm (1+1⁄2 in). Guinea...

ISBN 978-0-691-17243-9. Rayner, Enid; Hamra, Wayne; Shipton, Warren (2015). "Sexual Dimorphism and Sex Reversal in Birds". Journal of Applied Animal Science. 8 (3):...

While sexual dimorphism of the antennae is often seen in other cockroach species, such as Periplaneta americana, no antennal sexual dimorphism is apparent...

bumpy, pyramidal shape as is commonly seen in the latter species. Sexual dimorphism is slight. Compared to females, male radiated tortoises usually have longer...

advertising Sex symbol Sexual arousal Sexual capital Sexual dimorphism Sexual dimorphism in human bonding Sexual field Sexual polarity Sexual reproduction...

the epipelagic zone of warm seas[citation needed]. The degree of sexual dimorphism in this species is very high, with females growing up to two meters in...

significantly larger than the German Shepherd and shows substantial sexual dimorphism: dogs typically stand 67 to 72 cm (26 to 28 in) at the withers although...

Bryconops allisoni is a small species of freshwater ray-finned fish belonging to the family Iguanodectidae. This fish is found in rivers of Brazil. It...

kg and standing at least 60 cm at the withers, with the usual sexual dimorphism – dogs are somewhat larger and heavier than bitches. The coat may be of...

considered conspecific with the Northern Hemisphere's northern pintail. Sexual dimorphism is much less pronounced in the southern pintail, with the breeding plumage...

(which was apparently not present in the European aurochs) and the sexual dimorphism in colour is unclear in most cases; bulls and cows may be dark with a...

2009-10-09. Rowe, John W. (1997-07-01). "Growth rate, body size, sexual dimorphism and morphometric variation in four populations of painted turtles (Chrysemys...

The Chapultepec splitfin (Girardinichthys viviparus), known locally as mexcalpique, is a critically endangered species of fish in the family Goodeidae...

lineage are not always predictive of differences in another. Male/female dimorphism between organisms or reproductive organs of different sexes is not limited...

prominent in males, giving it its nickname "pink river dolphin". Sexual dimorphism is very evident, with males measuring 16% longer and weighing 55% more...

"hypercarcinisation", whereby the resemblance to a true crab is enhanced by sexual dimorphism of the abdomen. Allopetrolisthes spinifrons grows to a maximum carapace...

unmodified stomachs have a slight ability to breathe air. Considerable sexual dimorphism occurs in this family, most pronounced during the breeding season. For...

picta in Michigan) to a total lack of information. In many species, dimorphisms include elongated foreclaws or a concave plastron in the male. The longer...

to the life-history dependent dimorphism of Cryptomonas, which is discussed in details later in the section Dimorphism. Cryptomonas are also photolithotrophs...

The white-tailed eagle (Haliaeetus albicilla), sometimes known as the "sea eagle", is a large bird of prey, widely distributed across temperate Eurasia...

Within species there is considerable variation in patterns of sexual dimorphism. Males are larger than females in ruffs and several sandpipers, but are...

Betta balunga is a species of gourami endemic to the island of Borneo, and whose species name derives from the location where it was first described -...

space. Melanocetids, like most deep-sea anglerfish, have high sexual dimorphism: while females may reach a length of 18 cm (7.1 in) or more, males remain...

humans Biology Sexual differentiation disorders In research Physiology Dimorphism Scientific measures Medicine and health Autoimmunity Life expectancy Health...

Rasmussen, L. E. L.; Whitehouse, A. M.; Schulte, B. A. (2009). "Sexual dimorphism in the performance of chemosensory investigatory behaviours by African...

Ruiz-Herrera J, Sentandreu R (December 2002). "Different effectors of dimorphism in Yarrowia lipolytica". Archives of Microbiology. 178 (6): 477–83. Bibcode:2002ArMic...

brown, red, grey, green, or black. The species exhibits some sexual dimorphisms. Female Z. vivipara undergo colour polymorphism more commonly than males...

The Nile crocodile (Crocodylus niloticus) is a large crocodilian native to freshwater habitats in Africa, where it is present in 26 countries. It is widely...

evolutionary function statistically, and whether they represented sexual dimorphism or sexual maturity. In a response to Padian and Horner the same year,...

than males, and often have disproportionately longer weapons. Sexual dimorphism in weapon morphology in P. americana may have evolved due to sex differences...

food is the most abundant. Pheasants are characterised by strong sexual dimorphism, males being highly decorated with bright colours and adornments such...

communication of facial expressions, and/or emphasis of the lips' slight sexual dimorphism as a secondary sex characteristic. As an organ of the body, the lip can...

pointed. Its claws tend to be lengthier and curved. There is little sexual dimorphism, save for the females being slightly smaller than males. The gray fox...

encountered by hikers. Like many orb-weaver species, T. clavipes shows sexual dimorphism, with females possessing both a larger size and more complex and noticeable...

however, the next form separate from athamas, of which it is possibly only a dimorph." C. & R. Felder described Charaxes bharata in 1867 which was later considered...

smooth muscles in their lungs to take in air. Amphiuma demonstrate sexual dimorphism in relation to the size of their bodies and the size of their heads. Generally...

being larger. Larger species tend to show increased levels of sexual dimorphism in comparison to smaller species. Relying as they do on strength rather...

which is likely its primary function. Most genera display striking sexual dimorphism, and several species exhibit a dual male phenotype. They are nocturnal...

length of burbot by maturity is about 40 cm (16 in), with slight sexual dimorphism. Maximum lengths range between 30 and 120 cm (12 and 47 in), and weights...

7 cm (6.6 in) in the male, and under in the female. There is some sexual dimorphism in size, as the slightly heavier male weighs 1.7–2.5 kg (3.7–5.5 lb) compared...

largest toothed predator on Earth. Several whale species exhibit sexual dimorphism, in that the females are larger than males. Baleen whales have no teeth;...

color, although physiological traits vary between populations. Sexual dimorphism exists between males and females. Outside of its native range, H. tigerinus...

Anasaitis canosus, previously of the genus Corythalia, is a small jumping spider that can typically be found atop leaf-litter or man-made structures such...

or not fully develop the harp-pattern. Harp seals show little sexual dimorphism in size, with males being slightly larger. The harp seal is a modest diver...

to what extent varied drastically. This variation may indicate sexual dimorphism. It has also been hypothesized as a form of sexual display. Aside from...

Sexual dimorphism normally dictates larger males, but the females of all baleen whales are usually five percent larger than males. Sexual dimorphism is also...

are many-segmented, subequal, and usually longer than the body. Sexual dimorphism is slight. Females possess a prominent external ovipositor formed by elongate...

JSTOR 1564290. Gienger, C. M.; Beck, Daniel D. (2007). "Heads or tails? Sexual dimorphism in helodermatid lizards". Canadian Journal of Zoology. 85 (1): 92–95....

; Rosso, Massimiliano; Pitman, Robert L. (2023), "Beaked Whale Sexual Dimorphism, Mating Strategies, and Diversification", in Würsig, Bernd; Orbach, Dara...

gregariousness via sexual dimorphism. Sexual dimorphism within canine dimensions suggests cave lions had similar sexual dimorphism to lions, and in evolutionary...

Filistata hibernalis. Found in the Americas, it exhibits strong sexual dimorphism. It lives in the southern states of the USA, throughout Central America...

overall hair color is mostly grizzled-grey. The species exhibits sexual dimorphism; the males are larger in weight and body length and may be recognized...

characteristic bib that is a distinctly different color from the body. Sexual dimorphism is pronounced, with males being much larger. These martens are omnivorous...

Forger NG, Frank LG, Breedlove SM, Glickman SE (November 1996). "Sexual dimorphism of perineal muscles and motoneurons in spotted hyenas". The Journal of...

Balkans". In Herdt, Gilbert (ed.). Third Sex Third Gender: Beyond sexual dimorphism in culture and history (1st (2020) ebook ed.). New York: Zone Books. p...

smallest known genome of any annelid. The species shows extreme sexual dimorphism; females measure ~1 mm long and have simplified bodies containing six...

species show some barring, especially on the tail or wings. No sexual dimorphism is seen in the plumage of wrens, and little difference exists between...

Fertilization is internal and development is mostly indirect. Sexual dimorphism is well marked. Externally, males are much shorter than females and males...

unclear, and might reflect variability within a single species, sexual dimorphism, or the presence of two separate species. The size of this dinosaur has...

the wings, back, and head, or other features. Some races show sexual dimorphism during the breeding season. As many as six subspecies may be present in...

Karyorelictea is a class of ciliates in the subphylum Postciliodesmatophora. Most species are members of the microbenthos community, that is, microscopic...

Chaunacidae, Chaunacops melanostomus, exhibits a single trait showing sexual dimorphism. Sample collection shows that males tend to have larger nostrils than...

Zeh, Jeanne A.; Tavakilian, Gerard (1992). "Sexual Selection and Sexual Dimorphism in the Harlequin Beetle Acrocinus longimanus". Biotropica. 24 (1): 86–96...

is no clear argument for whether the trait has significance in sexual dimorphism studies or age related studies. In some studies, there is clear data that...

Uracentron flaviceps, the tropical thornytail iguana or Amazon thornytail iguana is an elusive species of medium-sized arboreal lizard found in the tropical...

Japan and western North America. Northern fur seals have extreme sexual dimorphism, with males being 30–40% longer and more than 4.5 times heavier than adult...

simply pinnate to pinnate-pinnatifid. There is either no frond dimorphism or only mild dimorphism, either open venation or very simple anastomosing. The sori...

cord leaves the cranium. Recent evidence regarding modern human sexual dimorphism (physical differences between male and female) in the lumbar spine has...

20 lb) and males 8 to 17 kg (18 to 37 lb), showing pronounced sexual dimorphism. Its skull is elongated, with a basal length of 123–153 mm (4.8–6.0 in)...

that this could be a reason why there is no observed significant sexual dimorphism between the male and female large white butterflies. Large white butterflies...

suffering from loss of OHC activity. Otoacoustic emissions also exhibit sex dimorphisms, since females tend to display higher magnitudes of otoacoustic emissions...

1–8. doi:10.1093/oxfordjournals.aob.a090623. Une, Kouji (1985). "Sexual dimorphism in the Japanese species of Macromitrium Brid. (Musci: Orthotrichaceae)"...

Babbitt, Gregory A.; Frederick, Peter C. (2007). "Selection for sexual bill dimorphism in ibises: An evaluation of hypotheses" (PDF). Waterbirds. 30 (2): 199–206...

(7 ft 7 in) in length and weighing 130–220 kilograms (290–490 lb). Sexual dimorphism is apparent in body size and shape, with mature males being larger, developing...

the underbelly and chin, a bushy tail, and a complete lack of sexual dimorphism. Southern yellow mongooses are larger, have yellow or reddish fur, longer...

Sternorrhyncha. Of dramatically variable appearance and extreme sexual dimorphism, they comprise the infraorder Coccomorpha which is considered a more convenient...

back and the highest body point on its head, exhibits significant sexual dimorphism with a male reaching an average shoulder height of about 2.75 m (9 ft...

are and who display a high degree of facial symmetry, masculine facial dimorphism, upper body strength, broad shoulders, a relatively narrow waist, and...

humans Biology Sexual differentiation disorders In research Physiology Dimorphism Scientific measures Medicine and health Autoimmunity Life expectancy Health...

checkered pattern on their underside. Bothrops oligobalius exhibits sexual dimorphism through scale count, with females generally having more ventral scales...

about 38–42% more, in the autumn. The animals show very little sexual dimorphism; males are only slightly larger than females. They have a uniform, steely-grey...

parasitoid wasp of the family Mymaridae, which exhibits strong sexual dimorphism. The males are blind, apterous, and their body length is only 40% that...

epithet dispar means 'to separate' in Latin; it refers to the sexual dimorphism observed in the male and female imagines. In June 2021 the 17-member governing...

difference in body size or weight between sexes. This lack of sexual dimorphism is not characteristic of all strepsirrhines. Some adapiforms were sexually...

which they use for fighting. Several lineages exhibit pronounced sexual dimorphism, and among each galliform clade, the more apomorphic ("advanced") lineages...

Paleocene of North America and it provides the best evidence for sexual dimorphism in the group. However, its close relationship with Dissacus navajovius...

about the reproductive habits are provided by the possibility of sexual dimorphism: Galton considered it likely that exemplars with five instead of six sacral...

high levels of sexual dimorphism is not a reliable way to determine group behavior, as leopards have similar sexual dimorphism to lions, but are in contrasts...

most species, the sexes are separate (dioecy) and there is little sexual dimorphism, but a few species are hermaphroditic and some parasitic forms show large...

Tympanocryptis tetraporophora, also known as Eyrean earless dragon or long-tailed earless dragon, is one of a documented species of a relatively small...

Mutation Neutral evolution Genetic drift Population Natural selection Sexual dimorphism Sexual selection Flowering plants Fungi Mate choice Social selection Trivers–Willard...

MgB3O3(OH)5·5H2O. It is a member of the inderite group and is a triclinic dimorph of the monoclinic inderite. Kurnakovite, was first described by Godlevsky...

ISBN 978-0-86576-002-8. Hedricks, A (1989). "The evolution of sexual dimorphism in animals: Hypotheses and tests" (PDF). Trends in Ecology & Evolution...

likely represent the same taxon with significant age-related and sexual dimorphism, though this is not a universally held view. In 2006, the team favoured...

E.; Andersen, Magnus; Wiig, Øystein; Aars, Jon (2010-05-01). "Sexual dimorphism and the mating ecology of polar bears (Ursus maritimus) at Svalbard"....

activities. Nikita et al. (2011) states: "The Garamantes exhibited low sexual dimorphism in the upper limbs, which is consistent to the pattern found in agricultural...

Vincent, Shawn E.; Herrel, Anthony; Irschick, Duncan J. (2004). "Sexual dimorphism in head shape and diet in the cottonmouth snake (Agkistrodon piscivorus)"...

Sexual dimorphism is seen; mature females reach a maximum overall length of 7 cm (2.8 in), while males reach only 4 cm (1.6 in). Sexual dimorphism is also...

com. Retrieved April 20, 2022. Saitta E.T. (2015). "Evidence for Sexual Dimorphism in the Plated Dinosaur Stegosaurus mjosi (Ornithischia, Stegosauria) from...

the shrew actively uses to search for prey, especially in the night. Dimorphism in body features between males and females is absent. A chromosome-level...

added the old Lull–Sternberg lineages combined with maturity and sexual dimorphism, suggesting that the T. horridus–T. prorsus–T. brevicornus lineage was...

competition, stabilization by grasping tree trunks during high browsing, sexual dimorphism, or gripping mates during mating given the lack of more specimens. He...

convincingly to be the woman contestant. Given the status of human sexual dimorphism as one of the most ancient of subjects, it is thus implicit in the above...

hibernates in dens during the winter. Himalayan brown bears exhibit sexual dimorphism. Males range from 1.5 to 2.2 m (4 ft 11 in to 7 ft 3 in) long, while females...

larger than the male, at 2.0–2.5 kg (4.4–5.5 lb). This is typical sexual dimorphism in birds of prey. Males usually have wingspans around 2.0 m (6.6 ft),...

find sexual dimorphism of any kind in a population in Volusia County, Florida. It is currently theorized that the lack of sexual dimorphism in the species...

sexual dimorphism theory would predict roughly equal numbers of individuals with two distinct sizes of tail clubs. Obvious sexual dimorphism has not...

majority of the species in this family demonstrate conspicuous sexual dimorphism, with the males usually being the more colorful sex and also showing an...

whether the wide range of variation in jaw size indicates simply sexual dimorphism or a grounds for identifying a new species. It could be explained as groundmass...

diversification that sexual selection often drives vocal evolution. Sexual dimorphism leads to different syrinxes in birds, and the degree of differences varies...

Mahoney and William David Lindsay Ride did not ascribe this to sexual dimorphism, because males and females of modern wombat and koala species—its closest...

miniature horses are no taller than 30 inches (76 cm) in adulthood. Sexual dimorphism is limited in equines. The penis of the male is vascular and lacks a bone...

Bryconops sapezal is a species of freshwater ray-finned fish belonging to the family Iguanodectidae. This species is found in the Rio Tapajós basin of...

"Paternity in eastern grey kangaroos: moderate skew despite strong sexual dimorphism". Behavioral Ecology. 26 (4): 1147–1155. doi:10.1093/beheco/arv052. ISSN 1045-2249...

loud roaring noises, especially during the mating competition. Sexual dimorphism in size is great. Correspondingly, the mating system is highly polygynous;...

Sex differences in humans – Difference between males and females Sexual dimorphism – Sex-specific adaptations Somatotype and constitutional psychology –...

eels to evade predators and hide from prey. Pelican eels display sexual dimorphism, with the largest morphological difference in the structure of the nasal...

(11-short-ton) apex predator, the orca. Various species of dolphins exhibit sexual dimorphism where the males are larger than females. They have streamlined, fish-like...

originate from the desire to look more attractive by exaggerating sexual dimorphism, as women have more slender necks than men. Another idea is that the coils...

3, a metallic luster, and usually exhibits a lead-grey color. It is a dimorph of lillianite, exhibiting increased Pb-Bi order and decreased symmetry...

competition by males pertaining to this species depends on their hind leg dimorphism. They use their legs to squeeze other males when competing for sexual...

shedding water due to special oils. Many of the ducks display sexual dimorphism, with the males being more brightly coloured than the females (although...

long. Mostly green with darker green on back, pale grey beak. Sexual dimorphism: male has a grey upper body, neck and head. Habitat: Madagascar Diet:...

wren and the bushwren; the New Zealand rock wren shows slight sexual dimorphism in its plumage and differences between the plumage of riflemen are pronounced...

between the species. All species have distinctive cheek patches. Sexual dimorphism is absent or slight – males and females generally have similar plumage...

(including the extinct Cuban macaw) are mostly red. There is no sexual dimorphism in the plumage, and the plumage of the juveniles is similar to adults...

preferring to act alone. This may explain, in part, the limited sexual size dimorphism shown by most duiker species, excluding the common duiker, in which the...

function and Evolution of Stegosaur Osteoderms and Hypothesized Sexual Dimorphism in Hesperosaurus". bioRxiv 10.1101/2025.04.10.648273. Gilmore, C. W. (1914)...

period; the adults are larger with different body proportions, less sexual dimorphism, and higher metabolic rates; they mature more rapidly and start reproducing...

bee with well-developed, large jaws. The species exhibits strong sexual dimorphism; females may reach a length of 38 mm (1.5 in), with a wingspan of 63.5 mm...