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.
White-cheeked spider monkey
The white-cheeked spider monkey is commonly found in the Brazilian Amazon. The area in which it is most likely to be found is between the Rio Tapajós (right bank) and its tributary, the Rio Teles Pires (right bank) and the Rio Xingu (left bank), south of the Rio Amazonas. A portion of their territory lies also within national forests such as Tapajós National Forest (), Xingu National Forest (), Altamira National Forest (), Itaituba I National Forest (), and Itaituba II National Forest ().