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Q: What causes the difference between the ancestor and modern koalas?
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What color is the fur color of the northern koala?

Koalas in the north have woolly light grey fur. The difference between the northern koalas and those found in the south is that southern koalas have darker grey fur tinged with brown.


How can koalas tell the difference between different types of eucalypt leaves?

The koala has an acutely sensitive nose, which enables it to detect subtle scent differences between different species of gum trees.


How often do koalas move homes?

Koalas have a range of home trees which they move between several times a week.


How do koalas know their homes?

Koalas live in eucalyptus trees. They know the trees within their home range by their scent. Koalas' rather large noses are exceptionally sensitive, and can detect differences between the trees. Also, a tree can "belong" to several koalas, as koalas do move between their home trees quite regularly. During mating season, male koalas rub their scent gland on the base of a tree so that other male koalas know not to encroach on that territory.


How many leaves do koalas eat?

Koalas eat between 300 grams and 500 grams of eucalyptus leaves every day.


How do koalas stay safe?

Koalas stay safe by remaining in trees. They are at their most vulnerable when they are on the ground, moving between their home trees.


Are koalas arboreal?

Koalas are arboreal, spendng most of their time in trees. However, they do also descend to the ground to roam between their range trees.


How many leaves do koalas eat in a day?

Koalas eat between 300 grams and 500 grams of eucalyptus leaves every day.


Are there koalas in Latin America?

No, koalas, unlike some mammals with similar characteristics shared between the two continents, are only native to Australia.


Why do older koalas not have problems with predators?

Older koalas are generally too large for predators. The main predators in trees are creatures such as quolls and pythons, but these do not prey on adult koalas. The main predators of adult koalas are on the ground. Dogs are particularly dangerous for koalas, but they cannot climb trees, so the only time adult koalas are in danger is when they are on the ground, moving between their home trees.


How and why are koalas marsupials?

Marsupial Mammals developed in isolation in Australia which led to diversification to fill the various niches in the food chain that weren't occupied or where other species could be out competed. Koalas are a specialized feeder eating Eucaliptus leaves and gleaning water from what they consume rather than from a discrete water source. Koalas are descended from an ancient marsupial ancestor that diversified to fill the various niches available in Australia.


What are adult koalas called?

Adult koalas are simply called koalas.