National Geographic - World's Deadliest War of the Worlds (2015)

World's Deadliest: War of the Worlds

The disputed borders between land and water come in many different forms — beaches, riverbanks, swamps and frozen ice. Each is home to its own dramas and conflicts, as aquatic and terrestrial creatures meet and engage in combat. Predators learn to hunt in different situations, and prey must watch for attacks from every direction.

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