/

‘Green Arabia’ was a crucial migration route for early humans

Archeological evidence shows that lakes and lush greenery existed on the Arabian Peninsula

A wide aerial shot of a desert
The site of Khall Amayshan 4 in northern Saudi Arabia, where evidence of repeated visits by early humans over the last 400,000 years was found, associated with the remains of ancient lakes. Credit: Palaeodeserts Project / Michael Petraglia