Scientists have been giving many possible reasons for the extinction of the Neanderthals. The latest theory is, Neanderthals died out because of their vision-centered brains. They had larger eyes than us. Their brains worked more for seeing things during long dark winter in Europe. Our brains worked more for social networks.
The study says so.
The Neanderthals left Africa and had to adapt to the longer, darker nights of Europe. So they evolved larger eyes and a much larger visual processing area at the backs of their brains. The humans that stayed in Africa did not need for such an adaption. Our ancestors evolved their frontal lobes with higher-level thinking.
“Since Neanderthals evolved at higher latitudes, more of the Neanderthal brain would have been dedicated to vision and body control, leaving less brain to deal with other functions like social networking,”
“We infer that Neanderthals had a smaller cognitive part of the brain and this would have limited them, including their ability to form larger groups. If you live in a larger group, you need a larger brain in order to process all those extra relationships,”
The Neanderthals’ more visually-focused brain structure might also have affected their ability to innovate and to adapt to the ice age that was thought to have contributed to their demise.
There is archaeological evidence, for example, that the Homo sapiens that coexisted with Neanderthals had needles that they used to make tailored clothing. This would have kept them much warmer than the wraps thought to have been worn by Neanderthals.
“Even if you had a small percent better ability to react quickly, to rely on your neighbours to help you survive and to pass on information – all these things together gave the edge to Homo sapiens over Neanderthals, and that may have made a difference to survival.”
The Neanderthals had better eyesight than Homo sapiens, so they probably could hunt better than us. They lacked social skills, but they were very strong and very smart.They had skills to make excellent tools. I still do not believe that the Neanderthal died out only because they could not have larger groups and lacked social skills. Many species survived who had much less qualities than the Neanderthals had. I still think we Homo sapiens were one of the main causes or the only cause of the extinction of the Neanderthals. We are a very jealous, wicked, selfish, greedy, insecure, vindictive, venomous, vicious, violent species. Most likely we killed them off. We did not want any other humans around us, who looked like us, but not exactly us. We rather tolerate animals who do not look like us but accept our dominance over them. Look at us, we domesticated hundreds of animals but we stay far away from bonobos or chimpanzees. Probably physically and psychologically we do not feel comfortable to live with primates or our distant cousins or we just don’t like to see any species around us from whom we have nothing to gain.