noun, Pathology. 1. the accumulation of excessive ketones in the body, as in diabetic acidosis. Origin of ketosis. 1915-1920.
Climate zones of Africa, showing the ecological break between the hot desert climate of the Sahara Desert (red), the hot semi-arid climate of the Sahel (orange) and the tropical climate of Central and Western Africa (blue).
The Sahara Desert is the world's largest hot desert, covering much of North Africa. The adaptations of the wildlife and plants to the treacherous environment are fascinating, and the cultural history of this geographic crossroads complex and involved.The dromedary camel, one of the Sahara's most famous animals.he Sahara Desert is the world's largest hot desert, covering much of North Africa. The adaptations of the wildlife and plants to the treacherous environment are fascinating, and the cultural history of this geographic crossroads complex and involved.