The North American rodent category includes the muskrat, which is a large aquatic rodent with a thick fur and webbed feet. It has a length of up to 40 cm and a weight of up to 2 kg. The CHIPMUNK is a small terrestrial squirrel-like rodent with stripes on its back. It has a length of up to 20 cm and a weight of up to 120 g. The kangaroo rat is a small, nocturnal rodent that is native to western North America. It has a length of up to 15 cm and a weight of up to 60 g.