The Serengeti National Park is a Tanzanian national park in the Serengeti ecosystem, famous for its annual migration of over 1.5 million white bearded (or brindled) wildebeest and 250,000 zebra and for its numerous Nile crocodile. The park covers 14,750 square kilometres of grassland plains, savanna, riverine forest, and woodlands. It lies in northwestern Tanzania, bordered to the north by the Kenyan border, where it is continuous with the Maasai Mara National Reserve.

The park is usually described as divided into three regions-

▪ Serengeti plains: the almost treeless grassland of the south is where the wildebeest breed, as they remain in the plains from December to May. Other hoofed animals - zebra, gazelle, impala, hartebeest, topi, buffalo, waterbuck - also appear in huge numbers during the wet season. 

▪ Western corridor: black clay soil covers the swampy savannah of this region. The Grumeti River is home to Nile crocodiles, colobus monkeys, and martial eagles. The migration occurs from May to July.

▪ Northern Serengeti: the landscape is dominated by open woodlands and hills, ranging from Seronera in the south to the Mara River on the Kenyan border. Apart from the migratory wildebeest and zebra (which occur from July to August, and in November), the bushy savannah is the best place to find elephant, giraffe, and dik dik.

Human habitation is forbidden in the park with the exception of staff for the Tanzania National Parks Authority, researchers and staff of the Frankfurt Zoological Society, and staff of the various lodges, campsites and hotels. 

The park is well known for the presence of the “Big Five” in game watching: lions, African leopards, African elephants, black rhinoceros, African buffalo and Tanzanian Cheetah. The park also supports many other species, including gazelle, topi, eland, waterbuck, hyena, baboon, impala, African wild dog, and giraffe. The park also boasts about 500 bird species, including ostrich, secretary bird, Kori bustard, crowned crane, marabou stork, martial eagle, lovebirds, and many species of vultures.