The term for animals that live in water is "aquatic animals." This group encompasses a wide variety of species, including fish, amphibians, marine mammals, and insects. Aquatic animals are specially adapted to thrive in their environments, possessing unique features such as gills for breathing underwater, fins for swimming, and streamlined bodies for navigating through water. Examples include fish like salmon, amphibians like frogs, and marine mammals like dolphins and whales. Aquatic animals play crucial roles in their ecosystems, maintaining the balance of aquatic life and contributing to the overall health of water environments.