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Witness the planet's breathtaking diversity -- from seabirds carpet-bombing the ocean to wildebeests eluding the wild dogs of the Serengeti.
On the unforgiving frontier of climate change, polar bears, walruses, seals and penguins find their icy Edens in peril.
Jungles and rainforests are home to an incredible variety of species like preening birds, intelligent orangutans and remarkable ambitious ants.
From fearsome sharks to lowly urchins, 90 percent of marine creatures live in coastal waters. Protecting these habitats is a battle humanity must win.
Cameras follow desert elephants seeking sustenance, bison roaming North America grasslands and caterpillars living the good life underground.
Venture into the deep, dark and desolate oceans that are home to an abundance of beautiful -- and downright strange -- creatures.
The need for fresh water is as strong as ever. However, the supply is becoming increasingly unpredictable for all manner of species.
Examine the fragile interdependence that exists between forests' wide variety of residents, including bald eagles, hunting dogs and Siberian tigers.
