Let's take a look deep inside these distinctive animals, and learn what adaptations they've picked up in order to call these harsh landscapes 'home'. At first glance, a kangaroo's pouch looks like ...

Narrator: At first glance, a kangaroo's pouch looks like nothing but a built-in baby sling. But if you peeked inside, you'd see it's far more complex than a simple pocket. It has to be ...