The Koala is much bigger than it looks! It can grow to a length of eighty very bulky centimeters. It has long arms, no tail and a naked bulbous snout. The first and second fingers are opposite to the other three. Koalas are very picky about where they live and what they eat. It will only eat eucalyptus leaves, and it seems that the Koala will only eat a selection from among these. This may be because some trees, such as the Manna Gum produce poisonous prussic acid in new leaves at certain times. In Victoria the principal food trees are the Manna Gum, Messmate, Mahogany, Peppermint, and Swamp Gum tree, while in New South Wales the Brush Box, Sydney Blue Gum and Forrest Red Gum trees are eaten. A neat feature of the Koala's anatomy is its so-called ‘appendix’, which attains a length of more than two meters. It is in no way comparable to the degenerate and probably functionless human appendix, but is really an extreme prolongation of the intestines to aid the digestion of bulky leafs. It seems that Koalas rarely drink water. The name Koala may come from a similar sounding native word meaning 'no drink.'
This animal is a summer breeder; the young are born about one month after mating, and are carried in the pouch for a further five of six months. Towards the end of this time the young enter and leave the pouch at will and often ride on their mother's back. They originally hung out in Southern Queensland, eastern New South Wales, Victoria and South Australia; they prefer a habitat of eucalyptus forests and woodlands.
They're nicknamed "Drop Bear," due to their tendency to fall into such a deep sleep during the day, that they lose their grip on the branch and fall onto the heads of anyone walking below.