The Great Wildebeest Migration is the largest overland animal migration in the world, spanning the Serengeti-Mara ecosystem in Tanzania and Kenya. Below are some interesting facts about them. The migration involves an estimated 1.5 to 2 million animals, primarily wildebeest, joined by hundreds of thousands of zebra and gazelles. It is a year-round, continuous circular journey covering approximately 800 to 1,000 km (500 to 620 miles), driven by the search for fresh grazing and water, following th