The large bamboo rat, Sumatran rat, or Indomalayan rat (Rhizomys sumatrensis) is a species of rodent in the family Spalacidae found in Cambodia, China, Indonesia, Laos, Malaysia, Myanmar, Thailand, and Vietnam. It is one of four species of bamboo rat. Individuals can reach lengths of nearly 50 cm (20 in) with a 20 cm (7.9 in) tail, and weigh up to 4 kilograms (8.8 lb).
Their typical diet includes bamboo roots, but they also feed on cultivated tapioca and sugarcane. They are, in turn, hunted as food by human beings.[1]