Blue wildebeest
This species of wildebeest seems to have evolved around 2.5 million years ago. The black wildebeest is believed to have diverged from the blue wildebeest to become a distinct species around a million years ago, in the mid- to late Pleistocene. Fossil evidence suggests that blue wildebeest were quite common in the Cradle of Humankind in the past. Apart from eastern Africa, fossils are commonly found in Elandsfontein, Cornelia, and Florisbad.
Delirium Wilderness
Wildlife predominant in the Delirium Wilderness includes beaver, bobcat, otter, wolf, various species of duck, loon, great blue heron, and sandhill crane. Whitetail deer, black bear, and rabbit are also found in the area.