Sci-News reported that a new study published in the Proceedings of the National Academy of Sciences debunks the widely-held conservative notion that early human herders, moving from northern Africa to southern Africa, could not have traveled just east of Lake Victoria in Kenya some 2,000 years ago because the area was bushy, moist and filled with tsetse flies that cause deadly sleeping sickness in livestock and humans.
Once green, the Sahara expanded 5,500 years ago, leading ancient herders to follow the rain and grasslands south to eastern Africa.
Click here to continue reading.
Lawan Dalha 