The Sahara is the largest hot desert in the world, covering approximately 9.2 million square kilometers in North Africa. It spans several countries, including Algeria, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, and Chad. The desert is known for its vast sand dunes, rocky plateaus, and extreme temperatures, which can reach over 50 degrees Celsius during the day and drop significantly at night. Despite its harsh conditions, the Sahara is home to various plants and animals adapted to survive in arid environments. Some of the notable species include the dromedary camel, Fennec fox, and various reptiles. The desert also has a rich cultural history, with ancient trade routes and nomadic tribes like the Tuareg people who have lived in the region for centuries.