Across
- 2. feeding
- 3. an alarm sound
- 6. aggression, submissive behavior
- 12. signaling between one animal and another
- 14. mating, giving birth
- 15. something outside the animal
- 16. working to create a relationship
- 19. protect a resource for exclusive use
- 20. learning based on habit
Down
- 1. ensuring survival of young
- 4. investigating
- 5. training for life
- 7. the study of animal behavior
- 8. something inside the animal
- 9. the development of behaviors through experience
- 10. defecation, urination
- 11. something that elicits a response
- 13. an action performed in response to stimulus
- 17. attracting a mate
- 18. lying down, sitting, basking, sleeping