Nature's Great Events

The Arctic snow melt causes the arrival of millions of animals that now must share one habitat.

In British Columbia, Canada, the survival of carnivores like bears depends on the yearly salmon run.

The animals drawn to the Serengeti plain after the annual rains must contend with carnivores.

Cooling South African coastal waters draw billions of sardines and many ocean predators.

The flooding of the Okavango River draws in wildlife, including both predators and prey.

Faced with the journey across the Pacific to feed, a young humpback tries to survive.