Prefer Newsweek on Google to see more of our trusted coverage when you search. Scientists have unlocked the mysteries behind nine rivers and lakes in North and South America that seem to "defy the ...

Michael Petraglia, professor at Griffith University’s Australian Research Centre for Human Evolution, explains, “The formation of lake and river landscapes, along with grasslands and savannahs, would ...

The desert that we see today in Arabia was once a region that repeatedly underwent "green" periods in the past, as a result of periods of high rainfall, resulting in the formation of lakes and rivers ...

Based on a climatic record from desert speleothems, researchers show recurrent humid intervals in the central Arabian interior over the past 8 million years. (Paul Breeze/The Green Arabia Project) (CN ...