The place
An ecosystem, not a park.
The Serengeti is one contiguous ecosystem of about 30,000 km² that spills across the Kenyan border into the Maasai Mara. The national park is the protected heart of it — but the herds have never recognised the boundary, which is exactly why the place works.
Its name comes from the Maa word siringet, roughly “the place where the land runs on forever”, and on the southern short-grass plains that is a literal description. North of Seronera the country changes: acacia woodland, granite kopjes standing out of the grass like islands, and rivers that cut the plain into a series of crossings.
Around two million wildebeest, a quarter of a million zebra and several hundred thousand gazelle move through it on an annual circuit. They are followed by the densest population of large predators in Africa — which is the real reason the Serengeti is not simply a very large field.
It became Tanzania’s first national park in 1951 and a UNESCO World Heritage Site in 1981. It has been studied continuously for longer than almost any other protected area on earth, which is why so much is known about what happens here and when.