Following is a transcript of the video. 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 ...

Eastern gray kangaroos roam ... Females have one baby at a time, which at birth is smaller than a cherry. The infant immediately climbs into its mother's pouch and does not emerge for two months.

A baby kangaroo – a joey – in its mother’s pouch Credit: Gabe Ginsberg With the right collaboration, funding and technical advancements, an IVF-assisted marsupial birth might be possible ...