Given this text give me short summary about Beavers

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, after capybaras, weighing up to 30 kilograms (66 lb). Beavers 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. They are herbivorous, consuming tree bark, aquatic plants, grasses and sedges.

Here is a short summary about Beavers:
There are two existing species - North American and Eurasian.
They are the second-largest living rodents. 
Physically species of Beaver can vary in terms of fur colour but they all have webbed back feet, hand-like front feet and flat scaly tails. Long chisel-like incisors are a key feature. 
Beavers can be found in freshwater habits. 
They are herbivores.