Black wildebeest
Features necessary for defending a territory, such as the horns and broad-based skull of the modern black wildebeest, have been found in their fossil ancestors. The earliest known fossil remains are in sedimentary rock in Cornelia in the Orange Free State and date back about 800,000 years. Fossils have also been reported from the Vaal River deposits, though whether or not they are as ancient as those found in Cornelia is unclear. Horns of the black wildebeest have been found in sand dunes near Hermanus in South Africa. This is far beyond the recorded range of the species and it has been suggested that these animals may have migrated to that region from the Karoo.
Black wolf
Black wolves rarely occur in Europe and Asia, where interactions with domestic dogs have been reduced over the past thousand years due to the depletion of wild wolf populations. They have occasionally appeared, as wolf-dog hybrids are known in Russia as "black wolves", and currently, 20–25% of Italy's wolf population is composed of black animals. They are more common in North America; about half of the wolves in the reintroduced wolf population in Wyoming's Yellowstone National Park are black. Like Pyrenees Wolves, Black wolves do not live in France. In southern Canada and Minnesota the black phase is more common than the white, though grey coloured wolves predominate.