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.
Black mamba
The black mamba is a long, slender, cylindrical snake with a "coffin-shaped" head with a somewhat pronounced brow ridge and a medium-sized eye. The adult snake's length typically ranges from but specimens have grown to lengths of . It is the second-longest venomous snake species, exceeded in length only by the king cobra. The black mamba is a proteroglyphous (front-fanged) snake, with fangs up to in length, located at the front of the maxilla. The tail of the species is long and thin, making up 17–25% of its body length. Black mambas weigh about on average.