Support Provided By
1:51
John Terborgh has spent a lifetime studying the Amazon rainforest.
1:57
Tony Sinclair arrived in the Serengeti in 1965, looking to study the wildlife.
5:22
Jim Estes tries to figure out what caused the collapse of a once-thriving kelp forest.
1:55
See how elephants actually help shape the flow of the Okavango River.
9:58
Join filmmakers Dereck and Beverly Joubert for a behind-the-camera exclusive.
1:30
The Southern Lesser Galago is perfectly adapted to hunt insects at night.
10:01
Filmmakers Dereck and Beverly Joubert show the process of filming episode two.