From a class project website:
Koalas live in societies, just like people. Each Koala has their own territory, made up of a number of ‘home range trees’ and ‘food trees’. The Koala spends most of its’ life in the trees. For safety, it comes to the ground only to move from one tree to another. These trees provide the koala with food, shelter and places for social contact. Each koala’s home range overlaps with those of their neighbours. It is in the shared, overlapping trees that most of the social interaction takes place. These are very important trees.
Thank you Home Tree for providing me with safety, shelter, food and social contact.