Every Ancient Human Species at Night

Every human species that has ever lived is missing the same piece of anatomy: the layer behind the eye that makes a cat's eyes flash in a torch beam. This video follows six human species through the one part of the day they all had to survive the same way, and shows why for one of them, the night wasn't dangerous at all. It was the only time they were safe. You'll learn why Homo habilis had almost no defense once the light went out, how a modern Kenyan teenager's invention proves exactly why fire kept predators away from Homo erectus, why Homo heidelbergensis never got a stable night to plan around, what a 2013 Oxford study found about Homo neanderthalensis's unusually large eyes and what it may have cost them, how modern light pollution is erasing a sky Homo sapiens once read like a map, and why Homo floresiensis's biggest predators were nowhere to be found after dark. If you enjoy human evolution and prehistoric science content, subscribe for more deep dives into how early humans actually survived. Timestamps: 0:00 Introduction 0:38 Homo habilis – The Early Toolmaker 2:44 Homo erectus – The Explorer 4:48 Homo heidelbergensis – The Cold-Climate Hunter 7:09 Homo neanderthalensis – The Ice Age Human 9:35 Homo sapiens – Modern Humans 11:45 Homo floresiensis – The Island Human 14:04 Final Thoughts #Human Evolution #human #ancient humans#Science News