This document discusses the origin and characteristics of the "Big Five" animals of Africa: lion, elephant, buffalo, rhinoceros, and leopard. It explains that the term was originally used by big game hunters in the 19th-20th centuries to refer to the most dangerous animals to hunt on foot. Each animal is then briefly described, highlighting traits like the lion being the "King of the Beasts", the elephant being the largest land animal, the buffalo being very dangerous, the declining rhino population, and the leopard being the most elusive.