1. Birds and reptiles both lay eggs.
2. Grey seals have got thick fur to keep them warm.
3. Mammals have babies and feed their young on milk.
4. Sharks live in warm seas.
5. Zebras have got black and white stripes.
6. Dolphins can easily learn how to play games.
7. Penguins have got thick feathers.
8. Koalas have got very sharp claws.
9. Penguins look funny then they walk.
10. Dolphins have got a big smile.
