The animal famous for building dams and lodges is the beaver. Beavers are known as nature's engineers due to their remarkable ability to alter their environment. They gnaw on trees to collect timber and then use these materials, along with mud and stones, to construct dams across rivers and streams. These dams create ponds that serve as protective habitats against predators and provide them with easy access to food. Beavers also build lodges in the center of these ponds for shelter. Their activities significantly impact ecosystems by creating wetlands that support diverse plant and animal life.