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Quick Facts
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Marsupialia
Family: Phascolarctidae
Genus: Phascolarctos
Species: cinereus
Subspecies: adustus

Height: 30 inches
Weight: 26 lbs
Gestation: 34 - 36 days
Offspring: 1
Life Span: 13 years

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Queensland Koala

Phascolarctos cinereus adustus

Eating (603 KB)

Koalas spend most of their lives in trees. Their large paws have strong claws that they use to get a grip on limbs. They can climb by gripping a branch with their front paws and bringing their back paws up to their front. Then they move their front claws up and repeat this motion. This motion is very slow in order to conserveWhat does conserve mean? energy. They also sleep up to 18 hours each day. The koala has a very short tail, so it cannot be used to hold onto trees. Female koalas have a pouch, a distinguishing characteristic of marsupials. Males are up to 50 percent larger than females and have a broader face.


The Koala has been known to feed on a large number of eucalypt and non-eucalypt trees. However, most of their diet is made up of only a few species of eucalypt trees. The koala eats about one pound of leaves each day. This feeding starts at dusk. They obtain almost all of their water from the leaves that they eat.


Koalas are found only in Australia. They prefer to live in eucalypt forests, since the eucalyptus tree is its preferred diet.


Adult koalas have permanent home ranges, with a male's range overlapping several females' ranges. Other than breeding season activities, there is very little social interaction or grouping.


Breeding season starts in October and lasts until February. During this time males become aggressive, calling out to other males and to females. The other males will usually respond with calls of their own. These calls are made by a series of inhalations followed by a loud growl. Males will mate with several females. After a gestationWhat does gestation mean? period of 34 to 36 days, a single koala is born. The newborn weighs less than 2 ounces and attaches to its mother in her pouch. It stays in the pouch for seven months.

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