Black wildebeest by the German zoologist Eberhard August Wilhelm von Zimmermann in 1780. He based his description on an article written by natural philosopher Jean-Nicolas-Sébastien Allamand in 1776. The generic name "Connochaetes" derives from the Greek words κόννος, "kónnos", "beard", and χαίτη, "khaítē", "flowing hair", "mane". The specific name "gnou" originates from the Khoikhoi name for these animals," gnou". The common name "gnu" is also said to have originated from the Hottentot name "t'gnu", which refers to the repeated calls of "ge-nu" by the bull in the mating season. The black wildebeest was first discovered in the northern part of South Africa
Blue wildebeest traditional calving and breeding ranges. Similarly, drastic declines have recently occurred in the Tarangire wildebeest migration. The total number of blue wildebeest is estimated to be around 1,550,000. The population trend overall is stable and the numbers in the Serengeti National Park (Tanzania) have increased to about 1,300,000. The population density ranges from 0.15/km in Hwange and Etosha National Parks to 35/km in Ngorongoro Crater and Serengeti National Park, where they are most plentiful. Blue wildebeest have also been introduced into a number of private game farms, reserves, and conservancy areas. For these reasons, the International Union for Conservation of