An interview about koala communication, vocalization, and social structure with Dr. Bill Ellis, head of The University of Queensland's Koala Ecology Group.
A fight erupts between two koalas after one of the males invades the other's territory.
A male koala roams the Australian suburbs in search of a mate to produce offspring.
A baby koala consumes his mother's pap, a secretion that will give the joey the bacteria needed to digest eucalyptus leaves.
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