published in ecosystems
Sandy desert 2
The Namib, the Oldest Desert in the World
The Namib covers an area of over 250,000 sqkm (almost as big as Italy). This desert, which is the oldest in the world (80 million years old) is the place with the highest sandy dunes in the world. Here, the sand is the reddest that can be found in any desert. The yearly precipitation is 25 mm of rain a year, but the morning fogs caused by a cold current named Benguela still bring the humidity that is needed for living.