Up Next
Back to Show
Nature
Otters & Orcas: An Alaskan Mystery
In this bonus scene from-The Serengeti Rules, scientist Jim Estes discovers the collapse of the kelp forest ecosystem he had once seen thriving in the 1970s. He determines how it’s caused by a ripple effect from the Pacific Northwest whaling business in the 1990s, changing the predation of orcas, thereby decimating the otter population and the kelp forest ecosystem by extension.
Support Provided By
Season
Unlock with PBS Passport
53:03
An intimate portrait of Sir David Attenborough’s life and career in natural history.
Unlock with PBS Passport
53:33
Follow three orphaned desert lion cubs as they navigate the brutal Skeleton Coast of Namibia.
Unlock with PBS Passport
53:33
Experience San Diego, where dazzling biodiversity thrives amidst a transformed urban landscape.
Unlock with PBS Passport
53:31
Discover the wildlife of Transylvania, a mysterious region hiding some of Europe’s last wilderness.
Unlock with PBS Passport
53:45
In Congo, filmmaker Vianet Djenguet comes face to face with the forest’s largest gorilla.
Unlock with PBS Passport
53:27
See the spectacular wildlife of The Burren in Ireland through the eyes of a pine marten.
Unlock with PBS Passport
53:29
Witness a moving view into the effects of war on animals and the humans who help them.
Unlock with PBS Passport
53:18
The most famous grizzly bear in the world attempts to raise cubs amid conflicts with people.
Unlock with PBS Passport
53:28
See the extreme ways in which raptors conquer the toughest habitats on Earth.
Unlock with PBS Passport
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.
53:03
Sir David Attenborough and experts unearth the fossil of the largest Jurassic predator.