Skip to main content
Donate
Access to this video is a benefit for members through PBS Passport.
Learn More
Member Sign-In
Learn More
Member Sign-In

Up Next

Dolphins: Breaking the Code

Dolphins: Breaking the Code

Season 10 Episode 1001
26:43
Cryptic Critters

Cryptic Critters

Season 10 Episode 1002
26:42
Lords of the Wetlands

Lords of the Wetlands

Season 10 Episode 1003
26:42
Fishing the Flats for Science

Fishing the Flats for Science

Season 10 Episode 1004
26:42
Florida’s Blue Holes: Oases in the Sea

Florida’s Blue Holes: Oases in the Sea

Season 12 Episode 1201
26:42
A Decade after Deepwater

A Decade after Deepwater

Season 12 Episode 1202
26:42
Peru’s Desert Penguins

Peru’s Desert Penguins

Season 12 Episode 1203
26:42
American Samoa’s Resilient Coral Reefs

American Samoa’s Resilient Coral Reefs

Season 12 Episode 1204
26:53
Ancient Adriatic: Croatia's Sunken History

Ancient Adriatic: Croatia's Sunken History

Season 16 Episode 1601
26:42
Eagle Rays: Soaring on Spotted Wings

Eagle Rays: Soaring on Spotted Wings

Season 16 Episode 1602
26:42
Maui Aloha ‘Āina: From Mauka to Makai

Maui Aloha ‘Āina: From Mauka to Makai

Season 16 Episode 1603
26:42
California Sea Otters: Life on the Edge

California Sea Otters: Life on the Edge

Season 16 Episode 1604
26:42
Back to Show
Changing Seas

Seagrasses and Mangroves

Season 2 Episode 203

Changing Seas examines the important role seagrasses and mangroves play in the ocean’s web of life. Today both are in decline globally, threatening an ecosystem collapse from the bottom of the food chain all the way to the top.

 Watch Preview
Stream on your TV
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.
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.
Corals of the Deep
26:46
Season 1 Episode 3
Corals of the Deep
Scientists scan the ocean floor to find deep sea corals threatened by bottom trawling.
Show more
Active loading indicator