Beavers' constructions are most commonly known for their DAMS, which are built by the animals to provide a safe and secure environment for their families. The DAMS are made of sticks, mud, and stones, and can be up to several meters in height. They are used to create pools of water that can be used for drinking, bathing, and protection from predators. Beavers' constructions also include lodges, which are built out of sticks and mud and provide shelter for the animals.