Access to this video is a benefit for WQED members.

Become a member

Episode Clips

Caribou Face a Gauntlet of Bears

The grizzles have just woken up from 6 months of hibernation, and they're starving.

The Herd Gets Back on Track

With just 13 days left until they go into labor, this herd still has 180 miles to go.

Bear Gets Too Close for Comfort

In open landscape, a bear has a hard time catching caribou - but not humans.

More Episodes


Join Africa’s longest land mammal migration as thousands of zebra trek through Botswana.


A thousand elephants come together in Kenya at a critical stage of their migration.

View all episodes

Other shows you may enjoy

Physics Girl
NOVA scienceNOW
Kingdoms of the Sky
A Year in Space

Browse all shows