Across
- 3. Most of the mammals are covered with it
- 6. Most of the animals lay them
- 7. Considered the most interesting group of animals because some can live on land and in water at the same time
- 11. It keeps birds warm
Down
- 1. Humans have mouths, Birds have...
- 2. Wild black-white animal
- 3. Their meat includes a high level of protein
- 4. The name of this group means an animal that crawls or moves on its belly.
- 5. Humans are in this animal group
- 8. The fish's body is covered with it
- 9. Only this group of animals can fly
- 10. Birds lay eggs in it
