These herds often graze with other species, and a quarter of a million zebra join a million wildebeest to follow the rains in the Great Migration from the Serengeti to the Mara and back.

Over a million wildebeest, 200,000 zebra and 350,000 Thomson gazelles form some of the huge plains herds. The great migration is one of the largest mass movements of land animals on the planet.