Across
- 2. animals like cow,cat, dog
- 3. place to live in
- 7. sleep
- 9. a creature with a spine
- 11. animals like tiger,puma,lion
Down
- 1. live in the surface layer of the sea
- 4. a small animal with six legs
- 5. animals that live both in water and on land
- 6. cold-blooded animals which lay eggs
- 8. animals like mice
- 10. give birth to
- 11. animals like sheep, deer