Complete the sentences with the correct words.

1. An animal which feeds its baby with ... is called a ... .

2. An animal which has scales and is ... is called a ... .

3. An animal which has six ... is called an ... .

4. An animal which lives on land and in ... is called an ... .

5. An animal which has feathers and lays ... is called a ... .

6. An animal which has ... to help it swim is called a ... .