How much babies do koala have?

Koalas typically give birth to one joey at a time, although twins can occur on rare occasions. After a gestation period of about 35 days, the tiny, underdeveloped joey crawls into its mother's pouch, where it will stay for several months as it continues to grow and develop. The joey will remain with its mother for up to a year, gradually transitioning to eating eucalyptus leaves.