This photo provided by Michael Petraglia shows six different views of a Homo sapiens fossil finger bone from the Al Wusta archaeological site in Saudi Arabia. Researchers say the bone provides a new clue about when and how our species migrated out of Africa, with hunter-gatherers reaching the Saudi Arabia area by 85,000 years ago. Ian Cartwright /Michael Petraglia via AP Photo
This photo provided by Michael Petraglia shows six different views of a Homo sapiens fossil finger bone from the Al Wusta archaeological site in Saudi Arabia. Researchers say the bone provides a new cShow more
Fossil finger from Saudi Arabia challenges migration theory
Research suggests humans arrived in Arabia much earlier than thought
