Fossil finger points to early humans entering Saudi Arabia

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. In a report released on Monday, April 9, 2018, 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)
This 2016 photo provided by Michael Petraglia shows a general view of the excavations at the Al Wusta archaeological site in Saudi Arabia. The ancient lake bed (in white) is surrounded by sand dunes of the Nefud Desert. In a report released on Monday, April 9, 2018, researchers say a fossil finger bone found here provides a new clue about when and how our species migrated out of Africa, with hunter-gatherers reaching this area by 85,000 years ago. (Michael Petraglia via AP)

Fossil finger points to early humans entering Saudi Arabia

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. In a report released on Monday, April 9, 2018, 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)
This 2016 photo provided by Michael Petraglia shows a general view of the excavations at the Al Wusta archaeological site in Saudi Arabia. The ancient lake bed (in white) is surrounded by sand dunes of the Nefud Desert. In a report released on Monday, April 9, 2018, researchers say a fossil finger bone found here provides a new clue about when and how our species migrated out of Africa, with hunter-gatherers reaching this area by 85,000 years ago. (Michael Petraglia via AP)