Atacama Desert May Have Been Marshland When First Settlers Arrived

The driest desert on Earth may have once been a patchwork of lakes and marshlands that supported the first settlers of South America as they populated the continent, new research suggests. The new findings suggest that the bone-dry Atacama Desert, which now looks almost as devoid of life as the surface of Mars, may have once been an important stopping point in the colonization of the Americas. Although the Atacama Desert, although it is a barrier nowadays,  it wasn't at the time early peopl