It’s been 40,000 years since the last Neanderthals walked the Earth, yet scientists are still trying to figure out who or what finished off the ancient hominid species. One of the more obvious possibilities is that modern humans massacred their Eurasian relatives, and the author of a new book suggests that our uniquely genocidal nature made such an outcome inevitable. Criminology expert Dr Yarin Eski from the Vrije Universiteit Amsterdam argues that “genocidal violence and mass exploitation are perhaps the defining characteristics of being human,” and explains how our talent for murder not only put paid to the Neanderthals, but...