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
Koala Bear" appears on the B-side of the 1983 Paul McCartney/Michael Jackson duet single "Say Say Say". A koala is the main character in Hanna-Barbera's "The Kwicky Koala Show" and Nippon Animation's "Noozles", both of which were animated cartoons of the early 1980s. Food products shaped like the koala include the Caramello Koala chocolate bar and the bite-sized cookie snack Koala's March. Dadswells Bridge in Victoria features a tourist complex shaped like a giant koala, and the Queensland Reds rugby team has a koala as its mascot. The Platinum Koala coin features the animal on the reverse and Elizabeth II on