The Serengeti National park is a arguably the best known wildlife sanctuary in the world with over 3 million large mammals. About 35 species of plains animals can be seen there including the “big 5” – Elephant, Rhino, Lion, Leopard and Buffalo. Other common species found here includes hippo, giraffe, eland, impala and other antelope types, baboons, monkey and a profusion of over 500 species of birds. In May or early June, huge herds of wildebeest, gazelle and zebra begin their annual spectacular migration northwards.