Mammals have hair or fur on their bodies.

Mammals can become pregnant and will then give

birth to live young.

Mammals nurse their young with milk.

Mammals have lungs and need air to breathe.

Mammals that live on land have four legs and ears that

stick out.

Mammals are warm blooded. This means that they can make their own body heat. Whether it is snowing outside or sunny,

mammals body temperature usually stays about the same.