Beaver swimming © Rene Laubach, Mass Audubon
© Rene Laubach

Easily recognizable by its long, broad tail (at a length of 12 to 20 inches), and its noticeably big and sharp front incisor teeth, beavers are most active at night. The most obvious signs of beavers are the distinctive “pencil points” of gnawed tree trunks and the lodges and dams they build. Learn More

Beavers are unique among mammals in that they alter their habitat to meet their needs by damming streams to form ponds. This behavior actually benefits other species (including humans), as well. By building dams and flooding woodland swamps, beavers play an important part in the restoration of lost wetlands (over 50 percent of our wetlands have disappeared since European settlement in North America), providing habitat and food for a wide variety of plants and animals. Learn More

Both humans and beavers change their surrounding to suit their needs, and from time to time, these needs may come into conflict. Property owners, in particular, may experience unwanted flooding. Since beavers are largely beneficial, it’s in our interest to find the least draconian solutions to beaver problems. Learn More