Sunday, April 10, 2016

Epic Animal Migrations in Yellowstone

Some of the world's most incredible animal migrations take place within the Greater Yellowstone Ecosystem. Among them are a 120-mile pronghorn migration, as well as nine elk herds with unique migration patterns. While on assignment in Yellowstone for National Geographic, photographer Joe Riis was able to capture the awe-inspiring migrations that few tourists are ever able to see:


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