Animal Adaptations

3. Charles Darwin observed these birds to come up with his theory of natural selection.
5. Animals that are active at dawn and dusk are known as this.
8. Blending into the environment to stay safe from predators.
10. Slow changes in animals and plants over time.
11. The type of selection that happens when animals that are best adapted survive and reproduce.
12. A skeleton on the inside of an animal protecting their important organs.
13. Animals that are active during the day are known as this.
16. These animals camouflaged against the trees.
17. To leave an area due to lack of food or the weather.
18. When an animal copies a dangerous animal, it is known as this.
19. This type of adaptation is how an animal acts to help it survive.

1. This type of adaptation is something about the body of an animal that helps it survive.
2. Animals that are active at night are known as this.
4. Inactivity during the cold winter months.
6. Inactivity during the hot summer months.
7. These animals evolved from the wolf.
9. Hard outer covering that protects insects and crustaceans.
14. The type of selection that happens when humans change a species to be more like what they want.
15. The last name of the scientist who came up with the theory of natural selection.