These prints, left behind by Ice Age people in the soft mud ... 21,000 and 23,000 years ago. That timeline flies in the face of the long-standing Clovis-first model, which held that humans entered ...

New evidence has led to an update of when an ancient ice sheet that used to cover large portions of North America melted – a discovery has ... Cordilleran ice sheet retreated to determine the new ...

Could climate change have done it? Scholars generally agree that North America witnessed some rapid climate adjustments as it shook off the Ice Age beginning about 17,000 years ago. The most ...

The migrations influenced by the Ice Age contributed to various ancestral ... the Bering Land Bridge, and North America. Earlier theories held ancient Siberians to have taken this journey, as ...

A strange cast of ferocious predators and giant herbivores lived here during the ice age. Graham Duggan Most archeologists agree that human beings reached North America 14,000 years ago ...

As an ice sheet thousands of feet thick began its final crawling retreat from North America ... timeline actually stretches further back — beyond the evolution of early humans and past the age ...

As an ice sheet thousands of feet thick began its final crawling retreat from North America to the Arctic toward the end of the last glacial period some 10,000 years ago, it left behind the planet’s ...