Beavers use their tail as a rudder. All they have to do is change the angle of their tail to turn. The beaver has a special nose and ears that close to keep out water. On land, the beaver is helpless, but they can slap their tail to make a warning to all beavers in a half a mile away. The beaver is very timid and usually work at night for their own safety.
Beavers eat the bark of trees.
They eat poplars, aspens, and other trees. Beavers take turns cutting down large trees with their their ever growing teeth. They use the branches and logs to make dams, canals, and lodges. When the water is deep, beavers build lodges with mud, rocks, and sod. A typical lodge is 10 to 20 feet around and 6 to 8 feet above the water.