Bones dating back 25,000 years suggest that humans lived in extremely icy conditions in Tibet, which were previously thought ...

Researchers have discovered fossil human footprints embedded in an ancient lakebed that show humans inhabited North America during the Last Glacial Maximum, in what is now New Mexico. Credit: National ...

Between 26,500 and 19,000 years ago, massive sheets of ice covered Earth’s Northern hemisphere. During this so-called last glacial maximum, the ice sequestered water, causing a drop in sea level and ...