Every year in the great plains of the Serengeti, Tanzania, the immense migrations of wildebeest are among the most spectacular images of animal life.
Particularly when they rush to cross the Mara River, on the border with Kenya, where crocodiles, lying in wait and in large numbers, take advantage of their slightest weaknesses.
What is perhaps less known is that this migration is shared by two other species, zebras and Thomson's gazelles, which follow essentially the same route, but not at exactly the same time.
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About fifty years ago, it was thought that zebras preceded wildebeests by a few days, and that gazelles brought up the rear between 15 and 30
days later.
And it was explained by the idea that the zebras, being larger, ate the tall grass first, leaving lower grass for the wildebeest, who finished the work, and opened the ground for the regrowth of plants and fresh shoots. , more nutritious for…
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