Paleoclimate and archaeological evidence tells us that, 11,000-5,000 years ago, the Earth's slow orbital 'wobble' transformed today's Sahara desert to a land covered with vegetation and lakes. Aa Aa ...

The African humid period reveals how northern Africa was dramatically wetter during the late Pleistocene and Holocene geologic epochs, when much of the Sahara desert was covered by grasses, trees and ...

Two 7,000-year-old mummies from the Takarkori rock shelter in the Sahara have been found to be from a group with a previously unknown ancestry. DNA analysis of the mummies, which are the remains of ...

The Ennedi rock art of Chad should not be read as decoration alone, but as a visual narrative of environmental change.

Two 7,000-year-old mummies, naturally preserved and buried in the Libyan Sahara, were discovered at the Takarkori rock ...

A cloud of dust escapes from an excavation site in the sand of Chad's arid north, where scientists are looking for signs of human habitation in an area once humid and called the "Green Sahara".