Each year, a small band of pronghorn follows the longest migration in the Americas below the Arctic.
Sperm whales are the world’s largest toothed whales and are one of the deepest diving cetaceans.
The migrating Serengeti-Mara population represents about 70% of the global population of common wildebeests.
A wave of orange surrounds the trees during the monarch butterfly migration.
Male southern elephant seals, or bulls, must compete to earn the right to mate with an assembly of females.
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