Reviews Lone Survivors: How We Came to Be the Only Humans on Earth by Chris Stringer By Science News April 6, 2012 at 1:25 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print A paleoanthropologist argues that multiple early human groups arose and competed in Africa. Times Books, 2012, 320 p., $28