Muskrat vs. Woodchuck — What's the Difference?

The muskrat (Ondatra zibethicus) is a medium-sized semiaquatic rodent native to North America and an introduced species in parts of Europe, Asia, and South America. The muskrat is found in wetlands over a wide range of climates and habitats.

A large burrowing rodent (Marmota monax) of northern and eastern North America, having a short-legged, heavyset body and grizzled brownish fur. Also called groundhog; also called regionally whistle pig.

A large semiaquatic rodent (Ondatra zibethicus) native to North America and naturalized in Eurasia, having a dense brown coat and musk glands under its long, scaly tail. Also called musquash, water rat.

A rodent of the family Sciuridae, belonging to the group of large ground squirrels known as marmots, Marmota monax.

The fur of this rodent.

A common large North American marmot (Arctomys monax). It is usually reddish brown, more or less grizzled with gray. It makes extensive burrows, and is often injurious to growing crops. Called also ground hog.

A large aquatic rodent (Ondatra zibethicus).

The yaffle, or green woodpecker.

Any of several species of shrews in the family Soricidae, especially the Asian house shrew (Suncus murinus).

Reddish brown North American marmot

A North American aquatic fur-bearing rodent (Ondatra zibethica formerly Fiber zibethicus). It resembles a rat in color and having a long scaly tail, but the tail is compressed, the hind feet are webbed, and the ears are concealed in the fur. It has scent glands which secrete a substance having a strong odor of musk. Called also musquash, musk beaver, ondatra, and sometimes water rat.

The musk shrew.

The desman.

The brown fur of a muskrat

Beaver-like aquatic rodent of North America with dark glossy brown fur