Archaeologists working in Alaska’s middle Tanana Valley have recovered stone and ivory tools from a sealed stratigraphic layer dating to roughly 14,000 years ago, making them among the oldest worked ...

NEW YORK — Stone tools found in a Mexican cave suggest that people were living in North America as early as about 26,500 years ago, much earlier than most scientists accept, a new study says. It’s a ...

Human-made ivory and stone tools have been found in a 14,000-year-old layer of Alaskan earth, providing evidence of some of the first people to inhabit the Americas. The tools resemble those made by ...