when was the west african rhino declared extinct
Western black rhinoceros The western black rhinoceros (Diceros bicornis longipes) or West African black rhinoceros is a subspecies of the black rhinoceros, declared extinct by the IUCN in 2011.[1][2] The western black rhinoceros was believed to have been genetically different from other rhino subspecies.[3] It was once widespread in the savanna of sub-Saharan Africa, but its numbers declined due to poaching. The western black rhinoceros resided primarily in Cameroon, but surveys since 2006 have failed to locate any individuals.