Narrator: At first glance, a kangaroo's pouch looks like nothing ... they only spend 33 days inside their mom before birth. That's like a human having a baby when she's two months pregnant.

The tiny joey, born the size of a jellybean, has spent the past few months growing and developing inside the mother's pouch.

In the clip, viewers see Jack curled up, sitting inside his mom's pouch, with his head and feet poking out. The baby kangaroo looks comfy until he decides to rise up and slip out of the pouch to ...