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 Koala Brothers Playhouse Disney, with the opening song "Call the Koala Brothers" repeated in instrumental form over the credits. CBeebies eliminates the introduction and closing song to squeeze the program into a 10-minute format. In the 30-minute broadcast version, the show opens with the theme song and then the narrator introduces Frank and Buster as they fly in their yellow two-seater propeller airplane above the outback. The supporting cast is introduced as the narrator asks "Who do you think the Koala Brothers are going to help today?" Each 30-minute episode ends with "The Helping Song", in which all the characters gather at