The finding takes us to Scotland's Outer Hebrides, revealing islands built by human ancestors more than 3,000 years earlier than we previously thought https://on.natgeo.com/2IddcPx

The finding takes us to Scotland's Outer Hebrides, revealing islands built by human ancestors more than 3,000 years earlier than we previously thought https://on.natgeo.com/2IddcPx 

https://twitter.com/NatGeoTravel/status/1138899011572772865