Skip to main content
Access to this video is a benefit for members through PBS Passport.

Up Next

Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
Back to Show
Changing Seas

California Sea Otters: Life on the Edge

Season 16 Episode 1604

Adored by many for its cuddly appearance, the threatened southern sea otter is a voracious predator that needs to eat the equivalent of 25% of its body weight a day to survive. Once nearly hunted to extinction, this endearing marine weasel has made a slow comeback on California’s central coast, demonstrating its role as an ecosystem engineer in the process.

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Season
Billfish: Battle on the Line
Unlock with PBS Passport
26:44
Researchers provide data necessary to protect fish populations from further decline.
Grand Canyman's Famous Stingrays
Unlock with PBS Passport
26:42
Researchers study what impact ecotourism might have on southern stingrays.
Sea Turtles: The Lost Years
26:43
Researchers are beginning to understand where turtles go during their “lost years.”
Saving Sawfish
Unlock with PBS Passport
26:54
Scientists conduct research to save the Smalltooth Sawfish.
Galapagos: Window into the Future
Unlock with PBS Passport
27:02
Scientists spend a month in the Galapagos Islands to conduct research.
Biggest Fish in the Sea
Unlock with PBS Passport
26:54
The world’s largest known aggregation of whale sharks occurs just off the coast of Cancun.
Living Fossils
Unlock with PBS Passport
26:48
Discover Crinoids which have been around since before the age of Dinosaurs.
Reefs of Rangiroa
Unlock with PBS Passport
26:46
The Changing Seas team meets with researchers in French Polynesia.
Creatures of the Deep
Unlock with PBS Passport
26:46
New research sheds light on the lives of mysterious creatures of the deep.
Sunken Stories
Unlock with PBS Passport
26:45
Divers from around the country learn how to map shipwrecks.
Coral Hybrids
26:45
Follow one scientist studying coral in Belize.
Coastal Carnivores
Unlock with PBS Passport
27:14
Scientists studying the coastal Everglades make some perplexing discoveries.
Active loading indicator