S1 E3: Kangaroos

Aired: 7/29/2014 | 0:55:21 | Expires: 7/15/2024 | Episode
In Australia, Joy and Mark uncover the reproductive secrets of some of the strangest mammals on Earth — the pouch-wearing marsupials. Thanks to their bizarre way of reproducing, kangaroos thrive in one of the most unpredictable, drought-prone environments on Earth — the Australian Outback.