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.
Slender mongoose
The slender mongoose, with up to fifty subspecies, are found throughout sub-Saharan Africa, with the black mongoose of Angola and Namibia sometimes considered a separate species. They are adaptable and can live nearly anywhere in this wide range, but are most common in the savannah and semiarid plains. They are much rarer in densely forested areas and deserts.