The Americas were the last continents conquered by humanity. Now we know that those who settled there were a hardy group that first had to survive in the Arctic
Source:
https://www.newscientist.com/article/mg24332490-500-the-first-americans-the-untold-story-of-the-pioneers-of-the-new-world/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home