description Koala Overview
Native to eastern Australia, the koala is a medium-sized, tree-dwelling marsupial in the order Diprotodontia. Its rounded ears and stout body make it recognizable, but its defining biological trait is a diet centered on eucalyptus leaves. These leaves offer limited energy and contain compounds that many other animals cannot tolerate, making the koala's feeding habits closely tied to its specialized digestion and choice of food trees. Koalas inhabit forests and woodlands where suitable trees provide both food and shelter.
They spend much of their time resting, an adaptation to their low-energy diet. Habitat destruction and fragmentation threaten these animals, alongside disease and the effects of climate change. The species is particularly relevant to conservation work on vulnerable arboreal wildlife and to studies of how a specialist herbivore depends on the condition of its habitat.
help Koala FAQ
What is the primary diet of a Koala?
Koalas survive almost entirely on a diet of eucalyptus leaves, which are highly toxic to most other mammals. They have a specialized digestive system and a very long cecum to help break down the tough, poisonous plant matter.
How many hours a day does a koala typically sleep?
Because their eucalyptus diet provides very little nutritional energy, koalas are highly sedentary and sleep for up to 18 to 22 hours a day. They spend almost all of their waking hours eating or grooming.
Are koalas considered an endangered species?
Yes, the koala was officially listed as endangered in Queensland, New South Wales, and the Australian Capital Territory under Australian federal law in 2022. Populations have severely declined due to bushfires, habitat destruction, and chlamydia.
Where do koalas carry their young?
Like kangaroos and wombats, female koalas have a pouch where they carry and nurse their underdeveloped young, called joeys. A joey will stay in the mother's pouch for about six months before emerging to ride on her back.
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