Beavers Keep on Gnawing

A beaver’s teeth never stop growing. Beavers have to gnaw and chew and chomp in order to keep their teeth at a reasonable size. They are second to humans in their ability to manipulate their environment. By building dams, they can change the vegetation and animal life in the areas that they live. The small pools of water that these dams create also serve as a defense to keep out predators.