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6 films
Fifty million red crabs march annually from Christmas Island to the sea, but invasive yellow crazy ants threaten their survival.
Over 10 billion herring gather in the Norwegian fjords each winter, attracting orcas and humpback whales that hunt them in coordinated groups.
Every four years, lemmings experience a population boom, providing essential food for snowy owls that can lay up to eleven eggs in a single season.
A group of lions can weigh between 280 and 420 pounds and hunt in packs of three to eight, capable of taking down prey as large as a 13,000-pound elephant.
Arctic foxes have been recorded making as many as 90 kills in a single day while hunting for lemmings beneath the snow.
Only 30 orcas live along the 90 miles of beaches on the Valdes Peninsula, forming four distinct clans that exhibit unique hunting strategies.
