Tagged With peopling of americas

As the last Ice Age was coming to an end, and as the first settlers arrived in North America, two distinct populations emerged. One of these groups would eventually go on to settle South America, but as new genetic evidence shows, these two ancestral groups - after being separated for thousands of years - had an unexpected reunion. The finding is changing our conceptions of how the southern continent was colonised and by whom.

In a study that's already attracting considerable controversy, a research team says it has found evidence of human habitation along the southern coast of California dating back an astounding 130,000 years. That's 10 times older than most estimates, and a complete upending of what we thought we knew about how and when humans first arrived in North America -- if it turns out to be true.