Beavers

Beavers (genus Castor) are large semiaquatic rodents of the Northern Hemisphere. There are two extant species: the North American beaver (Castor canadensis) and the Eurasian beaver (C. fiber). Beavers are the second-largest living rodents, after capybaras, weighing up to . They have stout bodies with large heads, long chisel-like incisors, brown or gray fur, hand-like front feet, webbed back feet, and tails that are flat and scaly. The two species differ in skull and tail shape and fur color. Beavers can be found in a number of freshwater habitats, such as rivers, streams, lakes and ponds. The

species of beaver

species of mammal

thumb|right|Castoreum Castoreum is a yellowish exudate from the castor sacs of mature beavers used in combination with urine to scent mark their territory.

dam constructed by beavers