Some animals are jacks of all trades, some masters of one. Homo sapiens, argues a provocative new commentary, are an evolutionary success story because our ancestors pulled off a unique feat: being masterly jacks of all trades. But is this ecological niche, the generalist specialist, the real reason our species is the last hominin standing?
When paleoanthropologists and archaeologists define what makes our species unique, they usually focus on our use of symbolism and language, as well as our skills in social networking (long before Facebook) and technological innovation. Those arguments for human exceptionalism have been challenged in recent years, however, as researchers have uncovered evidence that other members of the genus Homo, notably Neanderthals, were capable of similar cognitive processes, from artistic expression to producing fire at will.
But maybe, say two researchers, we got it wrong. What defines our species, and has allowed H. sapiens to survive and even thrive after all other hominins went extinct, is not about making better stone projectiles, or networking, or sprucing up the cave walls with a little ochre artwork. We’re the last hominins on Earth because we’re really good at adapting to a huge range of environments, including the extreme.