Koalas are marsupials, which means the baby koala is born extremely undeveloped, and then develops fully in the mother's pouch. The tiny, hairless, blind koala joey must make a journey to its mother's pouch after it's born, lured by the scent of her milk, as its sense of smell is very strong. To do so, it has strong claws that grasp its mother's fur as it makes its way to the safety of her pouch. There in the pouch, the teat swells in its mouth, securing it firmly in the pouch while it continues its development for several more months.

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Koalas cannot live in any grasslands, because they need access to gum trees. Their habitat is eucalypt woodland and bushland, but of the several hundred species of eucalyptus ("gum trees"), koalas prefer about 60 varieties, with their specific preferences being limited to a couple of dozen. Koalas have a range of home trees, generally within an area of up to a square kilometre. Grasslands do not support enough of the eucalyptus trees which koalas require.

Koalas do not shed their fur to any great extent. During the year, they undergo a gradual moult, but no particular seasonal moult.

Koalas do shed their food regularly through the year, but they do not undergo a significant seasonal moult.

Koalas do not travel except when they are moving around between their home trees. Koalas are essentially solitary animals, but they live in communities where the social structure is quite complex. Koalas are territorial, but each koala within the social group has its own specific range for feeding, which may or may not overlap the range of its neighbour. There is always one dominant male in each social group, but he is by no means the only male.

Koalas do feed alone and travel alone, but they understand their own social structure. When one of their community dies, another does not immediately move in and take its place. It takes about a year for the scent of the previous occupant to fade, and only then will another koala move in to its range.

A baby koala can be found in various zoos and in the wild in Australia. It is illegal to keep a baby koala as a pet in the United States without a Zoo licence.

Koalas live in the Southern Hemisphere. There is no such creature as a 'koala bear'.

All koalas, both male and female, react similarly when they are in danger. They climb the nearest tree in order to escape the danger.

Koalas are not lazy, they have a very poor diet. They spend up to 20 hours per day sleeping and the rest eating. They live in eucalyptus trees and eat only a few types of gum leaves from which they get all nutrients and water requirements. Eucalyptus leaves are tough, toxic and low in nutrition, but the koala has developed a stomach which is capable of removing the toxins from where they are filtered out by the liver. The caecum completes the process by changing the eucalyptus leaves into digestible nutrients. The caecum is similar to the human appendix. The koala must eat over a kilogram of leaves per day to meet its energy requirements. Eucalyptus leaves contain approximately 50% water, 18% fibre, 13% tannins, 8% fat, 5% carbohydrates, 4% protein and 2% minerals. Koalas have been seen feeding in 120 kinds of eucalypt tree including Manna Gum, Swamp Gum, Blue Gum, Forest Red Gum and Grey Gum. Koalas are not lazy, they have a very poor diet. They spend up to 20 hours per day sleeping and the rest eating. They live in eucalyptus trees and eat only a few types of gum leaves from which they get all nutrients and water requirements. Eucalyptus leaves are tough, toxic and low in nutrition, but the koala has developed a stomach which is capable of removing the toxins from where they are filtered out by the liver. The caecum completes the process by changing the eucalyptus leaves into digestible nutrients. The caecum is similar to the human appendix. The koala must eat over a kilogram of leaves per day to meet its energy requirements. Eucalyptus leaves contain approximately 50% water, 18% fibre, 13% tannins, 8% fat, 5% carbohydrates, 4% protein and 2% minerals. Koalas have been seen feeding in 120 kinds of eucalypt tree including Manna Gum, Swamp Gum, Blue Gum, Forest Red Gum and Grey Gum.

A koala is technically in two different places in a trophic level. While it is considered a specialist feeder due to its diet of certain kinds of eucalyptus leaves, it is actually a primary consumer because it is an herbivore that is eaten by other predators.

Although, as of 2013, koalas are not officially endangered, they are still vulnerable, and there are very real fears that they may become extinct in the future. To prevent this from happening, individuals need to raise awareness of the koalas' specialised habitat needs, and increase awareness of how much bushland is cut down for housing and roads.

Housing developments lead to an increase in the number of domestic dogs roaming through bushland, and dogs are one of the koalas' biggest killers. In addition, too many people allow their pets to wander unsupervised. If you are someone who lives in a known koala area, then ensure your dog is always well supervised.

Developments and land clearing also lead to more roads. Koalas have a range of home trees, and their territory is often split by roads through new urban developments. As a result, when koalas try to wander from one of their home range trees to another, they are hit by cars. If drivers slowed down through area where koalas are known to wander, there would be fewer deaths again.

They use their arms and legs (their legs are more like arms) to climb trees and move from branch to branch. Koalas are inactive creatures and sleep much of the time, they generally stay in the same area moving between trees at branch level rather than climbing down. They rarely drink, hence the Aboriginal name 'Koala" = Never Drink or No Drink. Koalas get most of their liquid intake from the moisture in the leaves. Because they spend most of their lives in a tree, it is not advisable to stand directly or even indirectly underneath when observing them.

It deppends where you mean?

In N.S.W. there are 199

In Queensland there are 371

In S.A. there are 81

In N.T. there are 63

In W.A. there are 12

In Tasmania there are 17

In Victoria there are 58

Pet hedgehogs are nocturnal, so they do sleep during the day. There are several ways to reverse this, but I prefer to let my hedgehog sleep whenever she wants to

names for the koala bear: Aussie, Auzzy, Ozzy, and Kasey

Scavengers in the koala's biome include goannas and bush turkeys, also known as scrub turkeys.

While the Tasmanian devil is one of Australia's best known scavengers, it is not in the koala's biome, as there are no koalas in Tasmania.

There is no species known as the "brown koala". There is only one secies of koala, and that is Phascolarctus cinereus. There is some debate over whether or not there are sub-species, but the koalas which are larger and tend to have longer fur, tinged with brown, are found in southern Australia. Koalas in the north are smaller, and their fur is grey, or ash-coloured.

the koala sleeps an average of 16 - 20 hours a day while a sloth only sleeps for 19 hours.

Opossums are actually sleep a full 4 hours less than the koala at only 15 hours each day.

A newborn kangaroo joey is about 2 cm long (less than an inch), depending on the species. The many smaller species of kangaroo, such as wallabies, have newborns of around 1.5 cm in length. All newborn kangaroos are blind, hairless and very undeveloped.

Gravity, temperature, light, friction etc...

Koalas have numerous special features.

They live in eucalyptus trees and eat only a few types of gum leaves from which they get all nutrients and water requirements. Eucalyptus leaves are tough, toxic and low in nutrition, but the koala has developed a stomach which can remove the toxins from where they are filtered out by the liver, whilst maximising the amount of energy the animal derives from the leaves. The caecum, similar to the human appendix except that it is 2 metres in length, then changes the eucalyptus leaves into digestible nutrients.

Koalas have very strong claws suitable for gripping trees and climbing. Between their first and second "fingers" is a large gap, which enables them to also grip tree branches comfortably, whilst their hind legs have one toe set at a wide angle. They also have toes with thick pads which enable them to sit comfortably in a tree all day. Koalas are one of the few species of mammals which has unique fingerprints, not unlike those of humans.

In order to attract a mate, the male has a scent gland which emits a very strong scent. He also makes unusually loud grunting noises.

As with all marsupials, the koala has a pouch, where the joey stays after birth for up to ten months. When the joey leaves the pouch, it stays for several more months on the back of their mother. The pouch opens backwards. After about 30 weeks, the mother produces a substance called pap. This substance is actually a specialised form of the mother's droppings which, having passed through her digestive system, give the joey the enzymes it needs to be able to start digesting the tough gum leaves, making an easier transition for the baby koala to start eating eucalyptus leaves.

Koalas in southern regions have thick, wool-like waterproof fur to keep them warm in cold weather and dry in rain. Koalas in northern regions are smaller, with less dense fur.

Koalas drink water only rarely. They are able to obtain most of their moisture needs from the eucalyptus leaves they eat. They will, however, resort to drinking water during prolonged drought and in heatwaves.