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Koalas

Native to Australia and exclusive to the eucalypt forests of Eastern and South-Eastern Australia, there are only three subspecies of Koala. Solitary animals, Koalas sleep as long as long as 18 hours a day and have a low-energy diet of eucalyptus leaves.

1,608 Questions

How strong is a koala's bite?

A kangaroo's tail is very strong. It plays a vital role in balancing the animal, both when it is bounding along, and when it is just walking slowly. A kangaroo will sometimes balance briefly on its tail while it kicks out with its hind legs: this is an effective defence behaviour.

Do koalas compete with other animals for food?

Not usually. Koalas generally have a range of home trees extending up to 1 square kilometre, and these home ranges overlap with those of other koalas. Their only difficulty is when a road or development is built through the centre of their home range, blocking access to the other trees. When this happens, the koala may try to reach its usual trees, or it may find alternatives.

What kills the koala?

There are several factors contributing to koala deaths each year.

The chief threat to the koala is habitat loss. Koalas inhabit prime land which man has decided is better used for housing developments. Not only do the koalas lose their sources of shelter and food, they are subject to dog attacks and being hit by cars as suburbia extends further outwards. A prime example of this is southeast Queensland, where koala numbers have dropped to 60% less than what they were a decade ago, entirely due to increased development - and where they now face extinction by 2020.

Koalas are territorial, and they live in complex social communities where each member has a certain number of trees within its territory. When access to these trees is cut off by new roads, the koalas will still try to cross the road, and risk being hit. Relocation of koalas is rarely successful because their territorial and social habits are largely misunderstood.

Another significant factor is predation by introduced species such as dogs and foxes.

Koalas are also subject to the disease chlamydia, which affects the koalas' fertility, and eventually leads to their death. Currently, there is no cure for this disease.

What do a kangaroo koala and opossum have in common?

Possums and kangaroos are both warmblooded mammals, specifically, marsupials. Both these creatures give birth to very undeveloped live young which then continue most of their development in the mother's pouch.

Many species of possums and kangaroos are herbivorous, although the smaller species of each are omnivorous, living also on insects and/or insect larvae. (Kangaroo does not refer to just wallabies, Red kangaroos and the Grey kangaroos - there are several small desert-dwelling species of macropod).

How can you prevent the extinction of the koala?

The first thing that you can do to help save the Koala is learn about them. Spread the word to others about the need to help save them. Write letters protesting destruction of their habitat. Do not support companies that invade the Koala habitat.

Can koalas get chlamydia?

It is not certain how koalas have come to be infected with Chlamydia. The most recent research has suggested that it originated from amphibians such as frogs.

What do Koalos eat?

Adult koalas eat eucalytus leaves. Juveniles or joeys drink only milk at first and then they consume milk and what is called pap. It is a substance produced by the mother that gives the joey the microbes it needs to digest eucalyptus leaves. Joeys consume milk and eucalyptus leaves until they are weaned at about one year old.

Are koalas approachable?

Aha... koalas might look cute but they're aggressive, but if you raise a young koala and it is always bonded with humans it can be a friendly mini bear :D

But if you see a wild koala stay away!

How do baby koalas stay on their moms back?

After the young koala grows too big for its mother's pouch, it is still dependent upon its mother for several months, and not able to look after itself in the arboreal habitat in which it lives. It clings to its mother's back for security and while it is still learning how to survive on its own.

What depends on koalas?

Few animals eat the koala. Unsupervised dogs frequently kill koalas, but they do not eat them.

Dingoes will eat koalas, and Birds of Prey may try to take koala joeys. Quolls may even attempt to eat a young joey if it is not secure in its mother's pouch.

What do koalas use their ears for?

Listening for danger and possibly keeping cool in that hot climate

What type of vertebrate is an koala?

A koala is a mammal; specifically, a marsupial.

What time of the year are koalas born?

Koalas are nocturnal, meaning they usually come out at night. However, they can certainly be seen during the day as they move between trees in their home range. Early mornings are one of the times they are most active.

How many koalas were there before?

It is not known how many koalas there were in 1900, but at this stage, they were very close to extinction. Demand from the US and the UK for koala fur meant that hunters were decimating these animals, just for their pelts. It was only when the Austalian government brought in legislation to protect the koala that numbs began to rise again.

What behavioral characteristics of the koala help it to survive?

  • Kangaroos are able to travel long distances at a high speed, expending very little energy. They are very energy-efficient, and this is linked directly to the physical action of bringing their hind legs up with each hop. Every hop literally refills the lungs. This means they can outrun their enemies.
  • Kangaroos have large, strong tendons in their hind legs which act as "springs". The springing motion requires less energy than running does, so kangaroos are able to bound for longer distances than other mammals with the standard four legs can run. They have strong back legs and elongated hind feet for bounding.

How many days after koalas mate is a baby koala born?

On average, female koalas of reproductive age give birth once a year, or once every two years.

How much does a baby koala weigh at birth?

The weight of a koala joey is dependent upon its age. When first born, a koala joey weighs 0.5 grams. By the time the young koala is 13 weeks old, it weighs an average of 50 grams.

As it grows, its weight naturally increases until, as an adult, a northern-dwelling male koala weighs up to 9kg (female 7.5kg) and a southern male koala up to 15 kg (females 9 kg).

What are the koala's natural animal enemies?

The Aboriginal people used them as a source of meat. Various animals including dingos, dogs, foxes and cats will also take them when possible and smaller koalas can be taken by snakes, and larger birds such as eagles, hawks, kites and falcons, etc.

During the late 1800s, koalas became an export commodity for their fur, mostly for export to the USA. Due to koala numbers dwindling and public outrage, laws were enacted protecting the koala and imports were banned by the USA in the late 1920s.

Their greatest threat is humans destroying their habitat.

The koala is not extinct, it is not even endangered. They are considered to be "Secure".

How much milk does a baby rabbit drink?

When it is 4 weeks old you can gradually introduce solid food. When it is 8 week old, it should be off mums milk and fully weaned.

Do koalas have disease?

Koala numbers are dropping partially as a result of the organism chlamydia, which has four major effects:

Scientists are still working on a cure, as this disease is decimating some of the populations on the mainland.

Koalas are also susceptible to leukaemia and skin cancers.

Could a koala survive in Alaska?

firstly koalas are not bears. Their main diet are the leaves of eucalyptus trees so unless eucalyptus trees are abundant then the answer would be no. But a small number kept in a zoo with enough of their favourite food would survive.

How long can koala bears live in the us?

Koalas are not bears, to begin with. They are marsupials uniquely adapted to the flora of Australia. They live in sub-tropical to temperate eucalyptus bushland, and eat only certain types of eucalyptus leaves. They cannot live in the wild in the US.

They are unable to eat just any type of eucalyptus. While there are hundreds of different eucalyptus species in Australia, koalas eat from only about 60 of the species, consuming about half a kilogram of eucalyptus leaves every day. Koalas will not eat all types of eucalyptus, feeding on just 14 species as their primary food source, specifically, the subgenus Symphyomyrphus. These species do not occur naturally in North America.

What are the koala's adaptations for its habitat?

Koalas 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.

Koalas must eat over a kilogram of leaves per day to meet their 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 in 120 kinds of eucalypt tree including Manna Gum, Swamp Gum, Blue Gum, Forest Red Gum and Grey Gum. However, they are only able to eat from some 60 species of gum trees, and within these sixty, there are just a dozen that they actually prefer above others.

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.

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.