Mammal profile

Koala

Phascolarctos cinereus

Koalas are tree-dwelling marsupials specialized for a fibrous and chemically defended leaf diet. They spend much of the day resting, which conserves energy while their digestive system processes eucalyptus foliage.

Koala in its natural environment
Photo: Diliff. CC BY-SA 3.0.
HabitatEucalyptus woodland and open forest
DietHerbivore
RangeEastern and southeastern Australia
Signature traitleaf-eating tree climber

Adaptations

Opposing digits and rough pads help grip branches, while strong limbs and claws support climbing. An enlarged cecum and associated microbes help break down fibrous leaves and manage some plant compounds.

Behavior and daily life

Koalas are mostly solitary and use overlapping home ranges. Males produce low bellows, and individuals move between selected food and shelter trees, sometimes crossing the ground where roads and dogs create risk.

Conservation

Current profile labelVulnerable globally, endangered in parts of Australia

Land clearing, fragmented habitat, vehicle strikes, dog attacks, disease, drought, heat, and severe fire affect koala populations differently across their range. Regional status should be checked with the relevant Australian authority.

Koalas select among eucalyptus species and individual trees rather than treating every eucalyptus leaf as equal food.

Stored on this device

Your animal library