Ngorongoro Conservation Area (2°30'-3°30'S, 34°50'-35°55'E) is a World Heritage Site located 180 kilometers (km) west of Arusha in the far north of Tanzania, adjoining the south-eastern edge of Serengeti National Park. An immense concentration of wild animals live in the huge and perfect crater of Ngorongoro. It is home to a small relict population of black rhinoceros and some 25,000 other large animals, largely ungulates, alongside the highest density of mammalian predators in Africa. Nearby are lake-filled Empakaai crater and the active volcano of Oldonyo Lenga. Excavations carried out in the Olduvai Gorge to the west, resulted in discoveries which have made the area one of the most important in the world for research on the evolution of the human species.
