Josie Glausiusz is a freelance journalist who writes about science and the environment for Nature, National Geographic, Scientific American, Hakai Magazine, Aeon, and Undark Magazine. She is the former On Science weekly columnist for The American Scholar and the author of Buzz: The Intimate Bond Between Humans and Insects. Her Hakai Magazine article “Land Divided, Coast United” won Amnesty International Canada’s 2015 Media Award (online media). Follow her on Twitter @josiegz.
These members of the genus Homo have long occupied two different branches on the family tree. But now that researchers think these groups interbred, scholars are giving serious consideration to whether we are the same species after all.