Across
- 3. cold-blooded vertebrate animals like snakes
- 7. animals that feed their children with milk
- 9. the butterfly is born there
- 10. a little frog
- 12. cold-blooded vertebrate animals like frogs
Down
- 1. wet
- 2. a young butterfly
- 4. children of animals
- 5. newborn frog
- 6. something that covers animals
- 8. something that covers fishes
- 11. lungs of fish