Aquatic rodents are a diverse group of mammals that are adapted to living in or near water. They include species such as beavers, muskrats, and capybaras. These animals have specialized features, like webbed feet and waterproof fur, which help them swim efficiently and stay warm in aquatic environments. These rodents play important roles in their ecosystems. For example, beavers are known for building dams that create wetlands, providing habitats for various wildlife. Muskrats contribute to the health of aquatic plants by feeding on them, while capybaras often graze on grasses near water bodies, helping to maintain the balance of their habitats.