Koala is a herbivorous marsupial animal that lives in Australia. Koalas are gray or red, they have a short thick fur, a short tail and funny furry ears of a round shape. This is a small animal that weighs about 6-12 kg and lives in eucalyptus forests, and spends most of his life on the trees. In the daytime koala sleeps on a branch, and in the night climbs on the trees and eats the leaves. Koala is very a slow and lazy animal, and for 16 hours a day the koala is not moving. Koala gets down on the ground only to move to another tree, which he can’t reach jumping from branch to branch. Also koalas can swim. Mother-koala usually has one cub that is smaller than 2 cm and weighs about 6 grams when he is born. The first 6 month of his life a koala cub lives in a bag on his mom’s stomach, growing and eating mother’s milk, and the next six months he spends riding on his mom’s back.