THE CLASSIFICATION OF ANIMALS
2.3. Mammals
![IDevice Icon](icon_preknowledge.gif)
LISTEN AND READ
Mammals are vertebrates. They are born live. They drink their mother's milk when they are babies.
- All mammals breathe air.
- Most mammals are land animals. However, some mammals, like dolphins, are aquatic.
- Most mammals have hair on their bodies. However, aquatic mammals have bare skin.
-
Almost
all mammals walk or swim. However, bats can fly.
Licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License
Andrés Egea - Yolanda Marcos 2008