Today we know that humans and chimpanzees share 99% of their DNA and that we have a lot in common. Not just how we look, but how we behave, form groups, defend our turf, and love each other. People didn't always see other primates this way, but in the 1960s and '70s, some amazing intrepid women came along to turn primatology on its hairy head. Jane Goodall, Dian Fossey and Birute Galdikas studied chimpanzees, gorillas and orangutans, respectively, and are the very definition of great minds of science. Their contributions to humanity's knowledge about its closest living relatives is the subject of today's SciShow: Great Minds.