Nutria

It somewhat resembles a very large rat, or a beaver with a small tail. Adults are typically 4–9 kg (8.8–19.8 lb) in weight, and 40–60 cm (16–24 in) in body length, with a 30- to 45-cm (12- to 18-in) tail. It is possible for nutria to weigh up to 16 to 17 kg (35 to 37 lb), although adults usually average 4.5 to 7 kg (9.9 to 15.4 lb). They have coarse, darkish brown outer fur with soft dense grey under fur, also called the coypu, nutria. Three distinguishing features are a white patch on the muzzle, webbed hind feet, and large, bright orange-yellow incisors. The nipples of female coypu are high on her flanks, to allow their young to feed while the female is in the water.