But it has not always been so inhospitable. During a period from about 14,500 to 5,000 years ago, it was a lush green savannah rich in bodies of water and teeming with life. And, according to ...

Between 14,500 and 5,000 years ago, the area was unrecognizable, transformed into a lush savannah by an unusually wet interval called the African Humid Period. People roamed this green landscape ...

But it has not always been so inhospitable. During a period from about 14,500 to 5,000 years ago, it was a lush green savannah rich in bodies of water and teeming with life. And, according to DNA ...