An animal with a wide flat tail and strong teeth. Beavers live in water and on land and can build dams (= barriers across rivers), made of pieces of wood and mud. It is an official symbol of Canada.
An animal with long legs, that eats grass, leaves, etc. and can run fast. Most male deer have antlers (= horns shaped like branches). There are many types of deer.
An African or Asian animal like a deer, that runs very fast. There are many types of antelope. An antelope is a member of a number of even-toed ungulate species indigenous to various regions in Africa and Eurasia.