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Shows how recent DNA research has cast doubt on the theory that sponges were the first...

Changing Seas

CHANGING SEAS takes viewers on an exciting adventure to the heart of our liquid planet. The documentary series offers an unprecedented look at how oceanographers and experts study earth's vast underwater wilderness, while shedding light on how over-fishing, global climate change and pollution threaten ocean resources.

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Shows how recent DNA research has cast doubt on the theory that sponges were the first...
Most people are familiar with the pretty tropical fish found in aquariums, but few...
After sea turtle hatchlings emerge from their nests, they vanish into the sea. Until...
The strange, prehistoric-looking Smalltooth Sawfish were once coveted by anglers as...
In the deep, dark waters off the coast of Roatan, Honduras, strange flowerlike animals...
Each summer, the world's largest known aggregation of whale sharks occurs just off the...
The Changing Seasteam meets with researchers in French Polynesia, where scientists...
Little-known animals spend their entire lives in the Gulf of Mexico's cold, deep waters....
In the Florida Keys, divers from around the country learn how to map shipwrecks and apply...
While Elkhorn and Staghorn corals have undergone a drastic decline in the Caribbean,...
During the winter full moons Nassau grouper gather in large numbers to spawn. Most of the...
On coral reefs, microorganisms are copious creatures. Throughout Florida, scientists...
Tiger sharks are the ultimate apex predators. Scientists use satellite tags and DNA...
In the emerging science of coral reef restoration, marine biologists and resource...
In the waters of the western Atlantic and Caribbean, a voracious alien predator has taken...
They are an ancient species of flowering plants that grow submerged in all of the world's...
Bottlenose dolphins are a beloved Florida icon. But, recent studies show disturbing signs...
How do you count two fish, three fish or even a school of fish? In Dry Tortugas National...
The Aquarius Undersea Laboratory is the only underwater operating station in the world...
At a time when large fish are rapidly disappearing from the world's oceans, one giant is...

Upcoming Episodes

Wed 6/28, 730pm

The strange, prehistoric-looking Smalltooth Sawfish were once coveted by anglers as popular trophy fish. But habitat loss and overfishing have greatly reduced the animals' range and landed them on the endangered species list. Today, the fish...

Wed 7/5, 730pm

After sea turtle hatchlings emerge from their nests, they vanish into the sea. Until recently, their journey was largely shrouded in mystery. Now, as technology advances, researchers are beginning to understand where turtles go during their so-...