SCIENCE A 1.8 million-year-old skull has rekindled debate over the identity of humanity’s ancient ancestors. (National Geographic News) Use our resources to better understand hominins and the human family tree. Discussion Ideas Read our terrific GeoStory “Hominin History,” which briefly outlines different hominin species, from S. tchadensis to H. sapiens sapiens. The authors of the new study profiled in the Nat Geo News article suggest that … Continue reading Scientists Debate Species of Ancient Humans Unearthed in Georgia