Monotremes are the most unusual mammals in the world because they lay eggs instead of giving birth to live babies. These rare animals are found only in Australia and New Guinea and include just five species: the platypus and four types of echidnas. Monotremes are designed with special features like duck-like bills or long snouts and produce milk to feed their young.
Even though monotremes lay eggs like birds and reptiles, they are true mammals with fur and warm blood. These amazing animals have adapted to different lifestyles, with platypuses swimming in rivers to catch insects and echidnas using their sticky tongues to eat ants and termites. Baby monotremes hatch from leathery eggs and drink milk that seeps from patches on their mother's belly!