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 where pastoralists who actively support koala habitat preservation receive the koala stamp of approval. September is Save the Koala Month. The AKF runs an annual fundraising campaign called Save the Koala Month each September. Save the Koala Day is held on the last Friday of that month. People from all over the world are encouraged to help sell Save the Koala Month merchandise such as temporary tattoos, stickers and badges, whether as individuals, businesses or school groups. Supporters are also encouraged to fundraise with donation boxes or events, returning their funds to the AKF at the end of the month.