1. Cathedral in the Sea

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. 1 December 1997. 26 min

Visit the submarine forests of giant kelp in the Northeastern Pacific Ocean, one of the most spectacular marine ecosystems on Earth.

2. Survival in the Sea

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. 1 December 1997. 26 min

Reveals ocean creatures' reproduction habits and how they defend themselves from predators.

3. Venom

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. 4 February 1998. 26 min

Deadly venom is just one of the survival strategies employed by anemones, scorpion fish, lion fish and other creatures that pack a deadly sting.

4. Creatures of Darkness

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. 4 February 1998. 26 min

Profiles the sea's nocturnal dwellers, including harbor seals and the squid.

5. The Great Whales

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. 29 April 1998. 26 min

Enter the world of the great whales and observe the magnificent humpback whales, the rare blue whale and the California grey whale.

6. Sharks

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. 29 April 1998. 26 min

Reveals never-before-seen predation behaviors of the hammerhead, blue, basking and great white sharks.

7. City in the Sea

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. 10 June 1998. 26 min

Reveals the staggering diversity of animal life in the Caribbean coral reef.

8. Star Gardens

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. 10 June 1998. 26 min

An unprecedented look at the reef community beneath the cold waters of the North Pacific. Time-lapse photography captures amazing footage of starfish behavior.

9. Mountain in the Sea

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. 5 August 1998. 26 min

Travel to the tiny island of Cocos off the west coast of Costa Rica; a refuge for large migratory marine animals.

10. Filming Secrets

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. 5 August 1998. 26 min

Plunges viewers into the world of under-water film-making with Michele and Howard Hall and their dedicated crew.