Across
- 3. (of birds, animals, etc.) to move from one part of the world to another according to the season
- 4. (homes/places where things live)
- 6. (protecting something from harm)
- 8. (having a baby developing inside the body)
- 9. (animals who hunt and kill others)
- 10. (the relation of plants and living creatures to each other and to their environment)
Down
- 1. (making better, richer, smarter, etc.)
- 2. (things that are near and around something)
- 5. (milk-producing animals)
- 7. (natural and automatic)