Which desert, located in Namibia and Angola, is the oldest desert in the world?

The Namib Desert, located along the western coast of Namibia and extending into Angola, is widely recognized as the oldest desert in the world, with an estimated age of around 55 million years. Its formation dates back to a time when the climate was significantly different, and it has since evolved into a unique arid ecosystem characterized by its high sand dunes, particularly those near Sossusvlei.

The Namib Desert's age allows for the development of distinct flora and fauna adapted to its extreme conditions, making it a site of significant ecological and geological interest. This longevity has led to a rich evolutionary history, with some species found there, such as the Welwitschia plant, being living fossils.

Other deserts mentioned, such as the Atacama, Kalahari, and Gobi, have different climatic conditions and geological histories. The Atacama is recognized for being one of the driest places on Earth, while the Kalahari is a semi-arid sandy savanna, and the Gobi is a cold desert in Central Asia. Their characteristics and histories differ from that of the Namib, reinforcing why the Namib holds the title of the oldest desert.