It’s been called “The Last Place on Earth” by National Geographic magazine, and Time describes it as the “Last Eden.” The Goualougo Triangle, nestled between two rivers in a Central African rain forest, is so remote that primate researchers who traveled 34 miles, mostly by foot, from the nearest village through dense forests and swampland to get there, have discovered a rare find: chimpanzees that have had very little or no contact at all with humans. The chimpanzees’ behavior when first coming in contact with the researchers was a telltale sign of lack of human exposure — the chimpanzees didn’t run and hide.