急求濒临灭绝的珍稀动物之考拉的简介,最好是英文的.

The koala is a small bear-like,tree-dwelling,herbivorous marsupial which averages about 9kg (20lb) in weight.Its fur is thick and usually ash grey with a tinge of brown in places.
The koala gets its name from an ancient Aboriginal word meaning no drink because it receives over 90% of its hydration 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.ie during droughts etc.
The koala is the only mammal,other than the Greater Glider and Ringtail Possum,which can survive on a diet of eucalyptus leaves.可以吗