No Bathroom Breaks For Joey

Ever wonder where a baby kangaroo (joey) goes to the bathroom?

Picture from National Geographic

Joeys actually pee and poop while in their mother's pouch. When they're small they don't produce much, and when they're bigger the pouch's lining absorbs some of it. It gets kind of smelly and dirty in there, so moms clean out their pouches every so often.

Keeping Baby Koalas Safe

Even though most people refer to Koalas as bears, they are actually marsupials.  

 Picture from Stanford

This means their young are born immature and they develop further in the safety of a pouch, being carried around by their mother.  In the pouch, it attaches itself to one of the two teats which swells in its mouth, preventing it from being dislodged from its source of food.  The joey stays in its mother's pouch for about six or seven months, drinking only milk.

One Kangaroo Baby After Another

Female kangaroos can get pregnant immediately after giving birth.

Picture from Live Science

The female kangaroo will give birth to a new offspring right about the time she ejects the older joey from her pouch. During this time of transition, she will simultaneously produce two different types of milk for the different needs of her young. Each joey knows which teat is theirs and will only nurse from the appropriate one.