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
The Kwicky Koala Show Koala", "The Bungle Brothers", "Crazy Claws" and "Dirty Dawg". Kwicky Koala (voiced by writer Bob Ogle) is similar to Avery's Droopy, except that Kwicky can escape his pursuer Wilford Wolf (voiced by John Stephenson impersonating Paul Lynde). The difference is that Kwicky moves at super-speed, which looks more like vanishing into thin air with an accompanying "beep" sound effect, much like Speedy Gonzales (the animation shortcut used to facilitate this often went to extremes by making Kwicky disappear from one spot and reappear instantly in the next, with no intermediate smear frames). For a koala, Kwicky has an American accent