Serengeti National Park is a vast treeless plain with thousands, even millions of animals searching for fresh grasslands. As the largest national park in Tanzania, the Serengeti attracts thousands of tourists each year. The best months for wildlife viewing are between December and June. The wet season is from March to May, with the coldest period from June to October. The annual migration of millions of zebra and wildebeest takes place in May or early June. This migration is one of the most impressive natural events and the primary draw for many tourists.
Large herds of antelope as well as lion, leopard, cheetah, hyena, bat eared fox, hunting dog and jackal are also found in Serengeti National Park. Nearly 500 species of bird have been recorded on the Serengeti. Many of these are attracted to the swamp area. 'Serengeti' means an 'extended place' in the Maasai language.