Building a Dam.
Above: The dam looks like o waterproof mat tipped at a 45° angle and is Beavers bend every which way to bring down the bigger trees using their supported by log pilings that straighten as the dam rises. Sharp teeth (below right: upper and lower incisors).
Below: The waterproof mat is coated with liquid mud from the bottom of the stream or lake.
Beavers build two kinds of shelters: the beaver lodge, made of mud ond branches (above left), and a sort of large den that they tunnel into the bank (obove right). Above: Beover pawprints, front ond back.
Beovers cut down small trees growing on the shore and stick them into the river bottom in front af their lodges ta coche food for the winter.