Explain why beavers build dams?

To protect themselves from predators.

Beavers build dams to protect themselves from predators. These imposing constructions serve as natural barriers, creating a physical barrier to deter predators such as wolves and coyotes from approaching the beavers' habitats. By erecting these dams, beavers can limit terrestrial access to their territory, forcing predators to use water to approach, which is an advantage for beavers, excellent swimmers. Dams also offer an effective way to detect the presence of predators. In case of danger, beavers can safely take refuge in the water, thus escaping their potential assailants. The construction of these complex structures is therefore an essential defense strategy for beavers in their natural environment.

To create a favorable habitat

Beavers build dams to create a favorable habitat. These dams retain water and form ponds, providing an environment conducive to the growth of aquatic plants. Beavers use these ponds to feed and protect themselves from predators. Additionally, the presence of calm water promotes biodiversity by attracting other animals such as fish, insects, and birds. Beavers also build burrows near the dams, providing safe shelters for resting, breeding, and raising their offspring. By shaping their environment in this way, beavers help create a rich and balanced ecosystem, benefiting many animal and plant species.

To facilitate the search for food

The beaver builds dams to facilitate the search for food. By creating these structures, they are able to maintain a stable water level around their territory. This allows them to have easier access to trees near the water. Beavers mainly feed on bark, leaves, small pieces of wood, and aquatic plants. By building dams, beavers can also create calm water bodies where they can store food for the winter. The dams therefore not only serve to facilitate the daily search for food, but also to ensure a reserve for periods when food is scarce.