The picture shows a cave in the north of Saudi Arabia. The Saharo-Arabian Desert experienced repeated wetter periods over the past eight million years. Wetter conditions favoured the exchange of ...

The Arabian Desert, today the largest expanse of windswept sand dunes on Earth, experienced recurring periods of humidity millions of years ago, researchers report April 9 in Nature. The study may ...

One of the planet's largest, driest biogeographic barriers was once lush with rivers and lakes for 8 million years, which encouraged the movements of water-dependent animals and indicates the ...

A new study posits that the vast, arid landscape of the Arabian desert once fostered grasslands and savannahs and featured a giant lake. (Wikipedia pic) One of the world’s largest deserts was ...

One of the driest places on Earth – the Saharo-Arabian Desert – may not have always been the arid landscape it is today. A new study, which examined the hydroclimate of the area over the ...

Scientists managed to reconstruct the ancient landscape of the Rub’ al-Khali, providing evidence of the existence of an extinct hydrographic network and a large lake that transformed this desert into ...