Experiencing 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, the icy homes of polar bears, walruses, seals and penguins are in peril.
Jungles and rainforests are home to an incredible variety of species like preening birds, intelligent orangutans and remarkably ambitious ants.
From deadly sharks to lowly urchins, 90 percent of marine creatures live in coastal waters. Protecting these habitats is a battle the human race must win.
From Deserts to Grasslands
Cameras follow desert elephants seeking sustenance, bison roaming North American grasslands and caterpillars living the good life underground.
Venturing 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, but the supply is becoming increasingly unpredictable for all manner of species.
Examining the fragile interdependence that exists between forests' wide variety of residents, including bald eagles, hunting dogs and Siberian tigers.