The kangaroo joey in this ... time outside the pouch, Jack returns to mom to be tucked back in. Even though Jack is a great jumper, it looks like he still appreciates a free ride.

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, because the joey inside is not your ...