| A | B |
| camouflage | blending in with their surroundings |
| mimicry | when an animal imitates another |
| hibernation | what some animals do in the winter |
| weapons | how some animals protect themselves from predators |
| instinct | a way of acting that an animal is born with |
| mammals | have live babies and stay with their young until adult |
| reptiles | lay eggs and leave them to hatch on their own |
| birds | lay eggs and stay with them until hatch |