why do beavers build dams

Beavers build dams primarily to create deep water ponds that provide them with protection from predators. These dams allow beavers to live in lodges with underwater entrances, making it difficult for predators such as bears and wolves to reach them. The ponds also enable beavers to store food and keep warm during winter. Additionally, the water body created by the dam helps beavers access their food sources, which include aquatic plants, tree bark, and leaves. The dam-building behavior is instinctive and is part of the beaver's survival strategy to create a safe habitat.