Examine the complex interactions among ocean inhabitants and study the rarely-seen cooperation between snakes and fish searching for food and the symbiotic relationship shared between algae and coral. Stunning footage from Indonesia, Bahrain, South Africa, Alaska, and Australia's Great Barrier Reef demonstrates the astounding variety of specialization and adaptation among ocean creatures, and an unprecedented view of a great white shark hunting fur seals stresses the fierce nature of life in an aquatic ecosystem. The journey of a humpback whale and her newborn calf from warm Caribbean waters to their winter feeding grounds in Alaska captures the triumph of life even against challenging odds. Running time: 42 minutes. Available to U.S. Customers Only.