Can koalas live in the rainforest or jungle?

Koalas cannot live in the rainforest because there are no eucalyptus trees in rain forests. Koalas rely on certain types of gum trees for their food, and these trees are found mostly in dry sclerophyll forest, commonly known as bushland.

Regarding whether koalas live in the jungle: there are no jungles in Australia. There is the bush and the outback. Koalas live in eucalyptus bushland or low woodland: wherever there are sufficient eucalyptus trees of their preferred variety.