Humans Reached Northern Europe in Time of Neanderthals

FILE - From left, models representing Flores, Homo sapiens and Neanderthal women stand in a science and anthropology museum in Lyon, France, Dec. 18, 2014. Humans could have lived alongside Neanderthals in northern Europe more than 45,000 years ago, scientists said Wednesday. 

Pioneering groups of humans braved icy conditions to settle in northern Europe more than 45,000 years ago, a "huge surprise" that means they could have lived there alongside Neanderthals, scientists said Wednesday.