September 19, 2012
Can DNA Clock Reconcile Genetics, Archaeology?
Ewen Callaway, Nature News
The story of human ancestors used to be writ only in bones and tools, but since the 1960s DNA has given its own version of events. Some results were revelatory, such as when DNA studies showed that all modern humans descended from ancestors who lived in Africa more than 100,000 years ago. Others were baffling, suggesting that key events in human evolution happened at times that flatly contradicted the archaeology.
TAGGED: Archaeology, Molecular Clock, Human Evolution, Mutation