| A | B |
|---|
| blubber | a thick layer of fat under the skin of some water mammals |
| domestic animals | animals that have been trained for man's use through many generations |
| endangered species | a kind of animal or plant which is in danger of becoming extinct |
| habitats | the living places of plants and animals |
| incisors | the front teeth |
| insectivores | insect-eating mammals |
| mammary glands | milk-producing structures of female mammals |
| marsupials | mammals that give birth to offspring which finish developing in a special pouch |
| molars | back teeth |
| nocturnal | active only at night |
| rodents | gnawing animals |
| scavengers | animals which eat other animals that have already died |
| social animals | animals that live in groups with others of the same kind |
| vertebrates | animals with backbones |
| warmblooded | designed to maintain a relatively constant body temperature |
