Secrets of the Ocean Realm

2. Survival in the Sea

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

3. Venom

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

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

5. The Great Whales

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

6. Sharks

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

7. City in the Sea

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

8. Star Gardens

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

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

10. Filming Secrets

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