Black wildebeest
The black wildebeest or white-tailed gnu ("Connochaetes gnou") is one of the two closely related wildebeest species. It is a member of the genus "Connochaetes" and family Bovidae. It was first described in 1780 by Eberhard August Wilhelm von Zimmermann. The black wildebeest is typically in head-and-body length, and the typical weight is . Males stand about at the shoulder, while the height of the females is . The black wildebeest is characterised by its white, long, horse-like tail. It also has a dark brown to black coat and long, dark-coloured hair between its forelegs and under its belly.
White-tailed mongoose
The white-tailed mongoose attains a weight range of , with an average of approximately , has a head-and-body length of and a tail length of . On average it appears to be the longest and heaviest extant species of mongoose, although its linear and body mass parameters broadly overlap with other larger mongoose species, in particular, the marsh mongoose seems to most closely rival (and possibly match) in range of body masses reported if not average weight. Its legs are relatively long for a mongoose. The head is long and narrow. Its large, rounded ears are set low on the sides of the head. It has a yellow to tan coloration on its body, with long black guard hairs, giving it an overall grizzled grey appearance. Distal from the tibiofemoral joint, the legs are black. The base of the large, bushy tail is brownish yellow, and on its distal half, the tail is white . This appendage may comprise up to 40% of the creature's body length. This species lacks hair on its upper lip and on the forepaws. Females have four teats.