ShareYourGroupShareYourGroupAnimals

Mammals

Mammals are warm-blooded animals with hair or fur. Mothers feed their young on milk. Almost all mammals give birth to live young: the platypus and the echidnas, which lay eggs, are the exceptions. Mammals breathe air with lungs, even those that live in the sea, such as whales and dolphins. People are mammals too.

How to recognise a mammal

Mammals on this site

Sorted by scientific order

Within the group, scientists place animals in orders. Animals in one order share a common ancestor.

What they eat

Other groups: birds, reptiles, amphibians, fish, invertebrates.