New study shows 'ghost DNA' in from modern-day population of west Africa 

The stunning find, published in the journal Science Advances, came after the scientists analysed genetic material from 405 people from Nigeria and Sierra Leone.

New study shows 'ghost DNA' in from modern-day population of west Africa 
The stunning find, published in the journal Science Advances, came after the scientists analysed genetic material from 405 people from Nigeria and Sierra Leone.