The koala is a small bear-like, tree-dwelling animal, which averages about 9 kilograms in weight. Its fur is thick and usually ash gray.The koala gets its name from an ancient Aboriginal word meaning "no drink" because it receives over 90% of it's water from the Eucalyptus leaves (also known as gum leaves) it eats, and only drinks when ill or times when there is not enough moisture in the leaves. Habitat refers to the types of bush land that koalas like to live in. They are found in a range of habitats, from coastal islands and tall eucalypt forests to low woodlands inland.