| Term | Definition |
| adaptation | the process where an animal becomes better suited to its habitat |
| habitat | environmental area that is inhabited by an animal or plant species |
| environment | The air, water and soil, and the other things that surround a person, animal, or plant |
| camouflage | coloration that blends in with the surrounding environment |
| shelter | animals go hear to protect themselves from predators and to get out of the heat or cold weather |
| mimicry | to look like other animals |
| oxygen | a basic need ; it is also a gas |
| hibernation | a long deep sleep |
| climate | average rain and temperature in an area over a period of time |
| metamorphosis | a series of changes from an egg to an adult |
| migration | movement to another area or region and back |
| instinct | comes natural; not learned |
| learned behaviors | hunting, walking, climbing |
| mammal | born to look just like its parents; warm blooded |
| herbivore | plant eater |
| carnivore | meat eater |
| omnivore | plant & meat eater |