Nature
Polar Bears Hunt Beluga Whales
As thousands of belugas arrive, these two polar bears are eager to hunt.
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Mesmerizing Sandpipers Hunt... While Being Hunted
Each small sandpiper must harvest up to 20,000 shrimp while avoiding the falcon.
Nature
Dramatic Vole Escape Caught on Camera
This vole is not safe from weasels or great owls -- even deep under the snow.
Nature
Tourism is Killing Wildebeest
The wildebeest migration across the river has become a premier attraction in Kenya.
Nature
How Wire Snares Threaten the Wildebeest Migration
As the wildebeest herd moves north, it faces a human threat.