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 ...

Here’s what you’ll learn when you read this story: New research on a 14,000-year-old soil layer in Alaska uncovered stone and mammoth ivory tools. The find offers the oldest examples of human-made ...

Add Yahoo as a preferred source to see more of our stories on Google. mammoths walking at night Human-made ivory and stone tools have been found in a 14,000-year-old layer of Alaskan earth, providing ...