Why do beavers build dams?
First of all, beaver dams are a good thing for animal life. It provides wetlands for birds and frogs; it creates a heaven for fish, frogs, and many other species. However, many landowners do not like beaver dams, because the dam diverts water away from farmland and other places they may need the water. Timber owners are also not in favor of beavers, because they harvest their trees. Anyway, all of this is not why beavers build dams. So, why do beavers build dams?
Beavers build their dams for many reasons. Beavers build dams to live in and to store their food (wood). The dams create still waters that protect the beavers from predators. Thus, beavers build dams for shelter, protection, and storage of food. It is that simple!