Witness the planet's breathtaking diversity -- from seabirds carpet-bombing the ocean to wildebeests eluding the wild dogs of the Serengeti.

Cameras follow desert elephants seeking sustenance, bison roaming North America grasslands and caterpillars living the good life underground.

Examine the fragile interdependence that exists between forests' wide variety of residents, including bald eagles, hunting dogs and Siberian tigers.