The Sahara Desert wasn’t always a barren wasteland—evidence suggests it was once home to lush vegetation, rivers, and thriving wildlife. Scientists are uncovering traces of this lost ecosystem, ...

Africa is often synonymous with its drylands that cover two-thirds of the continent. Relief is brought through rainfall ...

Incredibly, the Sahara wasn’t always barren. About 5,000 years ago, it was lush and green, with rivers, lakes, and abundant wildlife. Scientists believe that changes in the Earth’s axis ...