Richard Swann Lull (November 6, 1867 – April 22, 1957) was an American paleontologist and Sterling Professor at Yale University who is largely remembered for championing a non-Darwinian view of evolution, whereby mutation(s) could unlock presumed "genetic drives" that, over time, would lead populations to increasingly extreme phenotypes (and perhaps, ultimately, to extinction).
One famous example he used to support his non-Darwinian evolution theory concerned the enormous antlers of the Irish elk: he argued that these could not possibly be the result of natural selection, and instead reflected one of his "unlocked genetic drives" toward ever-increasing antler size. The poor elk, coping in each generation with ever-bigger antlers were eventually driven extinct.[3] His evolutionary theory was a form of orthogenesis.[4]
His book Organic Evolution (1917) received positive reviews and was described as an "excellent summary of the theories, facts, and factors of evolution."[5][6]
^Bowler, Peter J. (1992). The Eclipse of Darwinism: Anti-Darwinian Evolution Theories in the Decades around 1900. Baltimore: The Johns Hopkins University Press. p. 171. ISBN978-0801843914.