It is made of fur
A koalas skin is covered with fur. Koalas have a woolly light to dark grey fur with brown and white patches and a cream belly.
Koalas are made of the same biological parts as most other mammals.
Not any more. Koalas were once killed for their fur, as koalas fur was in high demand overseas. Koalas are now protected by law, and it is illegal to hunt them for any reason.
God made them that way
Koalas have opposable fingers and their paws are specially adapted to grip tree branches. Female koalas have pouches in which they carry their babies and they have tough skin on the bottom of their feet to help with traction on tree branches.
First of all, the koala is not a bear: it is a marsupial. Koalas do not have white skin: they have ash-coloured grey type of skin tending to pink, beneath their thick fur.
Koalas have adapted to changes in their environment as people build close to them, their colonies are getting smaller and more isolated.
Adult koalas are simply called koalas.
This is the way koalas are made. Their digestive system is uniquely adapted to gain as much nutrition as possible from these relatively indigestible leaves.
Koalas are not primates. Koalas are marsupials.
Koalas have thick skin on the pads of their feet which gives them extra grip. Together with their strong claws, this enables them to climb.
You may be seen as a threat and the Koala can spit venom at you in self defense, causing blindness and burning of the skin.