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Boys versus girls

Male koalas are more robust in size and can be identified by an easy to spot, strong smelling scent gland on their chest (sternum) which they rub on trees to mark territory. Female koalas are smaller with a white chest and a backward facing pouch to protect their pouched young from crumbling tree bark when climbing from tree to tree.


Interesting fact: Koala nose markings are unique and can be used for identification.