Skip to main content
Back to Show
Changing Seas

California Sea Otters: Life on the Edge | Changing Seas | Preview

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.

Support Provided By
Season
Beneath the Bridge
Unlock with PBS Passport
26:43
Discover what lives beneath the Blue Heron Bridge in Florida.
Maug’s Caldera: A Natural Laboratory
Unlock with PBS Passport
26:43
Visit the remote Pacific, the islands of Maug - a natural laboratory for scientists.
Manatees: Conserving a Marine Mammal
Unlock with PBS Passport
26:43
Scientists take advantage of manatee gatherings to study them.
Sponges: Oldest Creatures in the Sea?
Unlock with PBS Passport
26:43
Some scientists are suggesting that ctenophores are the oldest sea animals.
The Secret Sex Life of Fish
Unlock with PBS Passport
26:43
Discover how some fish species change their sex.
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.
Active loading indicator