The Sahara Desert

The Sahara Desert is the largest and hottest desert in the world with a temperature that ranges between 30 and 50 degrees. It occupies most of Northern Africa and it is over 9,000,000 square kilometers. In ancient times, The Sahara Desert was a much wetter place than it is today and it was home for dinosaurs and some people who lived on the edge of the desert. Today, people still live there, especially Egyptians, and some nomades. There are also a few species of animals such camels and goats, the Saharan cheetah, the sand vipers, monitor lizards and scorpions. According to scientists, the Sahara shrinks and grows; they say that in the early 1980s, "The Saharas Southern edge expanded into the Sahel, a dry band that separates the desert from the savanna. But by the mid-1980s this area was green and wet again. Wonderful fossils of dinosaurs like Afrovenator, Jobaria, and Ouranosaurus, have been found in the desert.