Skip to main content
Donate

Up Next

Eagle Rays: Soaring on Spotted Wings | Changing Seas | Preview

Preview
2:51

Maui Aloha ʻĀina: From Mauka to Makai | Changing Seas | Preview

Preview
3:09

Ancient Adriatic: Croatia's Sunken History | Changing Seas | Preview

Preview
5:30
Costa Rica's Surfing Paradise

Costa Rica's Surfing Paradise

Season 17 Episode 1701
26:46
Whales in a Plastic Ocean

Whales in a Plastic Ocean

Season 17 Episode 1702
26:46
Mystery of the Spinning Fish

Mystery of the Spinning Fish

Season 17 Episode 1703
26:42
The Elephant Seals of Año Nuevo

The Elephant Seals of Año Nuevo

Season 17 Episode 1704
26:42
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
Tuberculosis: The Forgotten Plague

Tuberculosis: The Forgotten Plague

Season 6 Episode 5
26:49
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
Coastal Carnivores
Unlock with PBS Passport
27:14
Season 4 Episode 404
Coastal Carnivores
Scientists studying the coastal Everglades make some perplexing discoveries.
Grouper Moon
Unlock with PBS Passport
27:01
Season 4 Episode 403
Grouper Moon
The Cayman Islands are home to the last great reproductive population of grouper.
Mysterious Microbes
Unlock with PBS Passport
29:33
Season 4 Episode 402
Mysterious Microbes
Scientists work to identify and link a devastating coral disease to a human pathogen.
Tracking Tigers
Unlock with PBS Passport
27:16
Season 4 Episode 401
Tracking Tigers
Scientists use satellite tags and DNA forensic tools to track tiger sharks.
After the Spill
Unlock with PBS Passport
26:47
Season 3 Episode 304
After the Spill
Oceanographers continue to study the long term effects of an oil spill.
Prescription: Oceans
Unlock with PBS Passport
26:46
Season 3 Episode 303
Prescription: Oceans
A group of scientists tests sea sponges for potential anti-cancer properties.
Reef Revival
Unlock with PBS Passport
26:46
Season 3 Episode 302
Reef Revival
Explore the emerging science of coral reef restoration.
Alien Invaders
Unlock with PBS Passport
26:49
Season 3 Episode 301
Alien Invaders
The invasive lionfish is a major threat to biodiversity and a stressed coral reef.
Seagrasses and Mangroves
Unlock with PBS Passport
26:48
Season 2 Episode 203
Seagrasses and Mangroves
Examine the important role seagrasses and mangroves play in the ocean’s web of life.
Sentinels of the Seas
Unlock with PBS Passport
26:51
Season 2 Episode 202
Sentinels of the Seas
Take a look at the health of the bottlenose dolphin.
No Fish Left Uncounted
Unlock with PBS Passport
26:51
Season 2 Episode 201
No Fish Left Uncounted
The Changing Seas crew shadows a team of research divers in Dry Tortugas National Park.
Farming the Sea
26:45
Season 1 Episode 4
Farming the Sea
Scientists develop sustainable aquaculture methods to take the pressure off wild fish.
Show more
Active loading indicator