Rolle - Le Vaud - St-George
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SERENGETI NATIONAL PARK, Tanzania — Every spring, out here on this endless sheet of yellow grass, two million wildebeest, zebras, gazelles and other grazers march north in search of greener pastures, with lions and hyenas stalking them and vultures circling above.
It is called the Great Migration, and it is widely considered one of the most spectacular assemblies of animal life on the planet.