Back to Show
Nature
How Wildebeest Saved the Serengeti
In the 1960s, ecologist Tony Sinclair made a breakthrough discovery when he observed a huge population surge of wildebeest in the Serengeti. He found that the wildebeest were the key to keeping the ecosystem balanced and that keystone species could be prey as well as predators.
Support Provided By
Season
53:28
See the extreme ways in which raptors conquer the toughest habitats on Earth.
53:58
From giant eagles to miniature falconets, meet the many species of raptors.
Unlock with PBS Passport
53:08
Patrick Dykstra has a life-changing encounter with a sperm whale and uncovers their world.
Unlock with PBS Passport
53:03
Sir David Attenborough and experts unearth the fossil of the largest Jurassic predator.
Unlock with PBS Passport
53:18
Get an intimate look at a silverback family in Gabon’s Loango National Park.
Unlock with PBS Passport
53:18
A Madagascan chameleon and a Scottish water vole travel to secure their bloodline.
Unlock with PBS Passport
53:18
A Taiwanese Pangolin and a Brazilian Lion Tamarin family travel to a strange new world.
Unlock with PBS Passport
53:18
A baby turtle in Canada and a young bushbaby in South Africa search for a safe new home.
Unlock with PBS Passport
53:25
Spy creatures showcase the challenges of ocean life.
Unlock with PBS Passport
53:25
Spy creatures uncover surprising undersea relationships.
Unlock with PBS Passport
53:25
Spy creatures explore animal emotions and the deep feelings we share.