THE CLASSIFICATION OF ANIMALS
2.4. Birds
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LISTEN AND READ
Birds are vertebrates. They are born
from eggs. They have feathers on their bodies.
- All birds breathe air.
- Birds have two legs and two wings. All birds have wings. However, not all birds can fly, for example, penguins.
- Many birds, such as sparrows, live on land. They can fly and walk.
- Other birds, such as ducks, live on land and water. They can fly, swim and walk.
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Andrés Egea - Yolanda Marcos 2008