Chris Stringer on the Origins and Rise of Modern Humans - NYTimes.com

Chris Stringer on the Origins and Rise of Modern Humans - NYTimes.com: Yes, the title is “Lone Survivors: How We Came to Be the Only Humans on Earth.” And this comes from the fact that if we went back 100,000 years, which is very recent, geologically speaking, there might have been as many as six different kinds of humans on the earth. All those other kinds have disappeared, and left us as the sole survivors.