Koala dominant. Older males usually have accumulated scratches, scars, and cuts on the exposed parts of their noses and on their eyelids. The koala's gestation period lasts 33–35 days, and a female gives birth to a single joey (although twins occur on occasion). As with all marsupials, the young are born while at the embryonic stage, weighing only . However, they have relatively well-developed lips, forelimbs, and shoulders, as well as functioning respiratory, digestive, and urinary systems. The joey crawls into its mother's pouch to continue the rest of its development. Unlike most other marsupials, the koala does not clean her
Australian Koala Foundation Gardens, he met Steve Brown who was acting as the honorary veterinary consultant to a colony of disease free koalas that lived there. Steve was a passionate advocate for the koala and he inspired Barry who suggested that a Foundation for the koala be formed. Together they began to gather friends and supporters around them to form an organisation to help cure koala diseases and save their declining numbers. A constitution was drawn up and on 17 January 1986 a Certificate of Incorporation (no. 1262) was issued in the name of the Australian Koala Association Inc. This name was changed