Agence France-Presse

Serengeti wildebeest migration

August 2, 2016

Updated on Aug 19, 2010

By Jesse Dukes

Thousands of wildebeest wind through the Masai Mara National Reserve in Kenya, Aug. 3, 2002. More than a million wildebeest annually cross the border between Tanzania and Kenya. (Pedro Ugarte/Getty Images)
Pedro Ugarte

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