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2:57
This breakthrough study shows how wildebeest are the keystones to the Serengeti.
2:07
Mary Power's love for aquatic life began when she realized she could see better underwater
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.
