Explore the drama of realms more dynamic than you can imagine, where predators and prey swirl in an epic struggle for survival. Find out why scientists see the oceans as the ultimate frontier for exploration, where we know less than we know about the universe at large.

Secret World of Mollusks

The world of mollusks, which is truly one of a kind.

Coral, Heart of The Ocean

Fervent advocate of environmental protection, Prince Albert II of Monaco joins an expedition to Tubbataha Park in the Philippines, one of the best preserved coral reefs in the world.

Atlantic Salmon: Lost at Sea

An in-depth look into what happens to juvenile salmon once they leave the rivers and head to sea.

The Last Walrus: Suffering in Captivity

Animal trainer, Phil Demers becomes an unlikely whistle blower against Marineland and starts a personal quest to end marine mammal captivity.

Changing Seas

S13, EP1 "Recreational Shark Fishing: Collaborating for Conservation"

Shore-based, catch and release shark fishing; scientists team up with anglers to study the survival rates of the fish and conduct outreach on best practices.

Changing Seas

S13, EP2 "At the Water's Edge: The Salt Marsh"

Scientists study the extensive salt marshes in the southeastern U.S., a vital nursery ground for marine species, and its resilience to climate change.

Changing Seas

S13, EP3 "Alvin: Pioneer of the Deep"

Upgrades to the deep-sea submersible Alvin will take it deeper than ever before, allowing Alvin to continue its revolutionary scientific work.

Changing Seas

S13, EP4 "Habitats: The Key to Florida's Fisheries"

Scientists work on restoration projects to ensure the future of fisheries for tarpon and snook, two of Florida's most iconic game fish.

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