Koalas and kangaroos are Australia's unique mammals.
Australia's unique animals, Koala also known as koala, is an arboreal marsupial. Koala means "without water", adult koalas generally 60-120 cm in length and weighing 8-10 kg. Each child produced a son, cub only 5.5 grams at birth, breast-feeding for 6 months in the bag, after riding a few months continue to grow in the mother's back, the life is about 20 years.
Koala is living for eating eucalyptus leaves, it is from the eucalyptus leaves in the
required intake of fat and body water, so it is rarely under the tree to find water to
drink, adult koala eats more than one kilogram of eucalyptus leaves each day. In addition to rarely drink it, another great feature is very Snooze, the daily average at least 15-20 hours of sleep in the trees. Scientists have discovered through research, koalas snooze because they eat eucalyptus leaves will contain narcotic ingredients to make them all day in a trance, not born with them to the lazy. Tour guide said that Koala 24 hours a day, sleeping for 20 hours, daze for 2 hours, 2 hours for eating leaves. Australia's no beast, Koala no natural enemies, most of the cause of death is old and not catch falling tree and fell to death.
Australian kangaroos divided into red kangaroos and gray kangaroos. Kangaroo short
forelimbs, hind limbs developed, often lifting forelimbs, hind legs to sit in, in order to jump on behalf of the run, jump up to 4 meters, 13 meters far to jump, can be said to jump highest and furthest mammals. Kangaroos generally have 12 meters tall, weighs about 30-60 kilograms.
Kangaroo in grass, plant roots, wild vegetables as for food. Kangaroos can breed all year round, but each child produced only one cub. Wallabies 30-40 days of fertilization births, newborn cubs are very small, only 2.5 cm in length and weighing only 1-2 grams of whole body exposed, no vision, after giving birth, it will instinctively climb their own mother child-care bag, in the pouch after six months of life can emerge. Kangaroo's life is generally 15 years.
Because kangaroos have superior fecundity, Australia is now nearly 60 million kangaroos, it is 3 times of the total population of Australia. They are clashing with humans and animals, they are the places where the grass and crops eaten almost every bite. Because Australia is an animal protectionist countries, the kangaroo is Australia's national symbol, not killing them from over-exploitation, the Government of Australia is also a headache, so take a number of "humanitarian" measures to control the large population of kangaroos, including the pill for kangaroos.
Kangaroos have good economic value, can eat kangaroo, kangaroo leather can also be made of leather and handbags.