Isolation also allowed for the evolution of exotic birds. Over 400 species of bird are found nowhere else, and the birds are as numerous as they are colourful. They range from the tiny honeyeaters to the large, flightless Emu which stands over two meters tall. Kangaroos The Kangaroo is unique to Australia and New Guinea, its hind limbs are longer than its forelimbs, it has a front opening pouch, and a large muscular tail. A baby kangaroo is only partially developed at birth, and must reach the safety of its mother's pouch unassisted.
Kangaroos are extremely social animals, and travel in groups.
For an image click here . Koalas Koalas rarely leave their trees, and then it is only to reach the safety of another tree. Koalas mature slowly over a period of three to four years, once they are mature they are capable of reproducing every year. Despite heavy hunting, disease, and the loss of their habitat, koalas, now protected, are making a comeback. For an image click here .