Other mammals include a diverse group of animals that are characterized by features such as fur or hair, warm-bloodedness, and the ability to produce milk to feed their young. This group encompasses a wide variety of species, from small rodents like mice to large animals like elephants. Mammals are found in nearly every habitat on Earth, including forests, deserts, and oceans. Some examples of other mammals are bats, which are the only flying mammals, and whales, which are adapted to life in water. Mammals typically give birth to live young, with a few exceptions like the platypus and echidna, which lay eggs. This group plays essential roles in ecosystems, contributing to biodiversity and food webs.