Up Next
Back to Show
Nature
Why Does San Diego's Ocean Glow Blue?
Just off San Diego's shore, single-celled algae called dinoflagellates start to reproduce and if disturbed, a chemical reaction within the cell creates a tiny spark of light. When the conditions are right, the algae multiply and the coastal waters glow blue.
Support Provided By
Season
53:31
Discover the wildlife of Transylvania, a mysterious region hiding some of Europe’s last wilderness.
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.
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.
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.