Mammals are warm blooded animals that live in many different parts of the world from the Equator to the Arctic (polar bears). There are flying mammals, (bats) and mammals that live wholly in water (whales dolphins seals sea otters etc) but most mammals live on land. Like Birds mammals are warm blooded.
- All mammals provide milk for their young.
- All mammals breath air.
- Most mammals give birth to live young that are nourished by the mother in the womb.
- Most mammals have hair round their bodies.