Black wildebeest
Where it lives alongside the blue wildebeest, the two species can hybridise, and this is regarded as a potential threat to the maintenance of the species. The black wildebeest was once very numerous and was present in Southern Africa in vast herds, but by the end of the 19th century, it had nearly been hunted to extinction and fewer than 600 animals remained. A small number of individuals was still present in game reserves and at zoos, and from these, the population was rescued.
Black dorcopsis
The black dorcopsis or black forest wallaby ("Dorcopsis atrata") is a species of marsupial in the family Macropodidae. It is endemic to an island at the eastern end of New Guinea where its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss and hunting, its population is declining and the IUCN lists it as being "Critically endangered".