When a beav er starts a family it will mate for life. Babies are called rites. Mothers have 2 or 4 rites at a time. Beavers make their dams out of, mud, sticks, stones, and debris. A beaver can swim a quarter of a mile without air.
Beavers make funny noises like a bark.
Their average weight is 35 to 40 pounds. Beavers have fur that is rich chocolate brown with light gray and their teeth are orange and yellow. A beaver eats aspen, pine, fir, beech, cottonwood and maple trees. A beaver's enemies are mostly people. Trappers still catch about 200,000 beaver a year.