1. Birds and reptiles both lay eggs. Grey seals have got thick fur to keep them warm

1_ 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 when they walk. 10. Dolphins have got a big smile.

2_ Fish live in water. Kangaroos have got strong back legs. Penguins weigh about twenty kilos. Mammals feed their young on milk. Parrots can learn how to talk easily. Dogs are friendly to people. Dolphins live in small groups. Snakes live in many different parts of the world. Cats have kitten and dogs have puppies.