According to new research published in Quaternary Science Reviews , we might finally have a clearer idea of what killed neanderthals off. Apparently, they lacked the social skills to survive, proving once again that you really should get out of your house and go meet people. We’ve been learning so much about Neanderthals of late: from what Neanderthal kids did when they were bored, to how intelligent they actually were , to how they were all banging human women for hundreds of thousands of years. Now we know they were the ultimate loners. Videos by VICE There is no definitive answer to why Neanderthals became extinct. There are plenty of theories, of course. Climate change, disease, and getting absorbed into Homo sapiens populations. All good theories are probably true to some degree. Now we can add a new one to the list: they were so painfully lonely that they died from it.…