The Atlantic Coast, where wild horses battle, bald eagles chase ospreys and sharks protect fish. Raccoons navigate city life and black bears search for food in ancient forests.
Mexico, where deserts meet tropics. See new footage of fledgling pygmy owls, orca hunting, new species in flooded caves and orchid bees filmed in incredible detail.
The Amazon, the largest rainforest on Earth; drone footage captures giant otters hunting together while black caimans prey on newly hatched turtles; a harpy eagle chick's first days in the canopy and army ants on the move reveal new behaviors.
The Frozen North, where wolves and polar bears vie for food, hares outsmart lynx and walrus sing on rocky shores. As summer arrives, grouse perform mating dances, caribou migrate vast distances and salmon race upstream to survive.
