The head-and-body length of adult North American beavers is 74–90 cm (29–35 in), with the tail adding a further 20–35 cm (7.9–13.8 in). Very old individuals can exceptionally exceed normal sizes, weighing more than 40 kg (88 lb) or even as much as 50 kg (110 lb) (higher than the maximum known for the Eurasian beaver). [38][39][40][41]

The American beaver's most noticeable characteristic is the long, flat, black tail. A beaver’s tail not only helps it swim faster, but can also be used to make a loud alarm call when slapped against water. In addition, the large tail helps the beaver balance when carrying a heavy log or tree trunk.

Beavers (genus Castor) are large, semiaquatic rodents of the Northern Hemisphere. There are two existing species: the North American beaver (Castor canadensis) and the Eurasian beaver (C. fiber). Beavers are the second-largest living rodents, …

One of the most distinctive features on a beaver is their broad and flat tail, which is primarily used for fat storage and communication. Put together, and the beaver is highly specialized for a semi-aquatic lifestyle. In the water, they use their webbed hindfeet to …

Webbed feet, a flattened paddle-like tail, and elevated eyes and ears to see and hear while submerged are only a handful of the plethora of specialisations beavers exhibit. There were perhaps over 400,000,000 beavers in North America and at least one million in Europe before the fur trade decimated populations.

A common furbearer, the beaver inhabits waterways of every North American state and Canadian Province. A unique paddle shaped tail distinguishes the species and self-sharpening teeth allow beavers to mow down sizable trees.

The North American beaver, Castor canadensis, is a large, web-footed, semi-aquatic rodent with brown fur and a wide, flat, dark tail. The tail acts as a rudder while swimming, as a prop for standing upright, as a lever when dragging tree logs, and as a noise maker for producing a warning signal when it is slapped on the water.

NATURAL HISTORY ver, Castoroides ohioensis, of which fossilized remains have been found in North America. Cas-tor canadensis is one of two remaining species in the genus Castor. Castor fi ber, the Eurasian beaver, is native to Europe and Asia …

Their large, flat, paddle-shaped tail and webbed hind feet aid in swimming. North American beavers have short front legs and longer back legs causing them to have a rear end that is higher than the front while walking. In addition, they have skulls and teeth that are very large.

On land is a large, clumsy, hump-backed animal. In the water, becomes sleek and torpedo-shaped. Propels itself with powerful webbed hind feet. Beavers use their large dorsally flattened, scale-covered tail to maneuver in water. Slapping the tail on water surface is used as a signal of alarm. Split nail on the second hind toe is used for grooming.