-Female koalas
- Koala mothers raise their young alone without input from their fathers.
- After six months of gestation, a single joey is born.
- The joey is born blind, hairless, and is only 2 cm (0.79 in) long.
- It immediately crawls up the mother's front into her pouch.
- The joey stays in the pouch for about six months, suckling on the mother's milk.
-During that time, it grows fur, opens its eyes, and starts to eat eucalyptus leaves.
Male koalas
- Male koalas do not participate in raising their young.
- After mating, the male koala leaves the female to fend for herself and the joey.
- Male koalas live a solitary life, except during the mating season.
- They are known to be quite aggressive towards each other during this time.