Superior: The Fatal Return of Race Science. Angela Saini

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СКАЧАТЬ which was dated at roughly a million years and possibly older. A million years is an order of magnitude older than modern humans, hundreds of thousands of years before some of our ancestors first began to migrate out of Africa. It couldn’t possibly be the ancestor of any living person. Yet Wolpoff says he was struck by the similarities he thought he could see between its facial structure and that of modern-day Australians. ‘I had reconstructed a fossil that looked so much like a native Australian to me I almost dropped it,’ he says. ‘I propped it up on my lap with the face staring at me … when I turned it over on its side to get a good look at it, I was really surprised.’

      Teaming up with Alan Thorne, who had done related research and shared his interpretation of the past, they came up with the theory that Homo sapiens evolved not only in Africa, but that some of the earlier ancestors of our species spread out of Africa and then independently evolved into modern humans, before mixing and interbreeding with other human groups to create the one single species we recognise today. In their article for Scientific American, which helped catapult their multiregional hypothesis into the mainstream, they wrote, ‘some of the features that distinguish major human groups, such as Asians, Australian Aborigines and Europeans, evolved over a long period, roughly where these people are found today.’

      They described these populations as ‘types’, judiciously steering clear of the word ‘race’. ‘A race in biology is a subspecies,’ Wolpoff clarifies when I ask him about it. ‘It’s a part of a species that lives in its own geographic area, that has its own anatomy, its own morphology, and can integrate with other subspecies at the boundaries … There are no subspecies any more. There may have been subspecies in the past – that’s something we argue about. But we do know there are no subspecies now.’

      Many academics found Wolpoff and Thorne’s idea unconvincing or offensive, or both. According to historian Billy Griffiths, the multiregional way of thinking about our origins, undercutting the fundamental belief that we are all human and nothing else, has echoes of an earlier intellectual tradition that viewed ‘races’ as separate species. ‘Wherever we are in the world we look at the deep past and these immense spans of time through the lens of our present moment and our biases and what we want,’ he tells me. ‘Archaeology is a discipline that is saturated by colonialism, of course. It can’t entirely escape its colonial roots.’ Multiregionalism, while it was a response to the evidence available at the time, also carried echoes of the politics of colonialism and conquest. ‘That’s the ugly political legacy that dogs the multiregional hypothesis.’

      Wolpoff has always been sensitive to the controversy. He faced down plenty of criticism when he and Alan Thorne published their work. ‘We were the enemy,’ he recalls. ‘If we were right, there couldn’t be a single recent origin for humans … They said, you’re talking about the evolution of human races in separate places independently of each other.’

      Their theory remains unproven. Academics in the West and in Africa today generally accept that humans became modern in Africa and then adapted to the environments where they happened to move to fairly recently in evolutionary time – and even these are only superficial adaptations such as skin colour, linked directly to survival. But not everyone everywhere agrees. In China, there’s a belief among both the public and leading academics that Chinese ancestry goes back considerably further than the migration out of Africa. One of Wolpoff’s collaborators, palaeontologist Wu Xinzhi at the Chinese Academy of Sciences, has argued that fossil evidence supports the notion that Homo sapiens evolved separately in China from earlier human species who were living there more than a million years ago, despite data showing that modern Chinese populations carry about as much of a genetic contribution from modern humans who left Africa as other non-African populations do.

      ‘There are many people who are not happy with the idea of African origin,’ says Eleanor Scerri, an archaeologist based at the University of Oxford who researches human origins. ‘They have co-opted multiregionalism to make a claim that this is a simplistic idea, that races are real, and that people who have come from a particular area have always been there.’ She tells me this appears to be prevalent not only in China, but also in Russia. ‘There is no acceptance that they were ever African.’

      While for some an unwillingness to accept African origins may be motivated by racism or nationalism, it isn’t for all. There are those for whom it’s simply a way of squaring old origin stories with modern science. In Australia, for instance, Billy Griffiths tells me, many indigenous people favour the multiregional hypothesis because it sits closer to their own belief that they have been here from the very beginning. Indeed, this is an origin myth shared by cultures in many parts of the world. Until further evidence comes along (and maybe even after it does), the choice of theory may be driven as much by personal motivations as by data. The past can never be completely known, so the classic multiregional hypothesis persists despite its lack of support among experts. It has political power.

      While classic multiregionalism seems unlikely to be the story of our past, the fact that we now know our ancestors bred with other kinds of archaic humans does have implications. It gives nourishment to those who would like to resurrect the multiregional hypothesis in full. It’s a factual nugget that feeds fresh speculation about the roots of racial difference. Some dogged supporters of the multiregional hypothesis can rightly claim that at least one prediction made by Wolpoff and Thorne has turned out to be correct. The pair suggested that other now extinct humans such as Neanderthals either evolved into modern humans or interbred with them. And on interbreeding, we now know from genetic evidence, the pair got it right. Some of our ancestors did mate with Neanderthals, although their contribution to people’s DNA today runs to just a few per cent, which means it couldn’t have been particularly widespread. But it did happen.

      When I ask Wolpoff if he feels vindicated by this, he laughs. ‘You said vindicated. We said relief!’

      Genetics has done the unthinkable, says rock art expert Benjamin Smith. ‘The thing that has worried me is the way that genetics research has moved … We thought that we were basically all the same, whether you’re a bushman in southern Africa, an Aboriginal Australian living in rural Western Australia, or someone like myself who is of European extraction. Everyone was telling us that we were all identical, all the modern science.’ The latest discoveries appear to move the story back a little closer to the nineteenth-century account. ‘This idea that some of us are more interbred with Neanderthals, some of us are more interbred with Denisovans … and Aboriginal Australians had quite a high proportion of Denisovan genetics, for example. That could lead us back to the nasty conclusion that we are all different,’ he warns. ‘I can see how it might be racialised.’

      Indeed, when geneticists revealed the Neanderthal connection, personal ancestry testing companies were quick to sell services offering members of the public the opportunity to find out how much Neanderthal ancestry they might have, using data on genetic variants shared by both humans and Neanderthals – presumably in the expectation that this might mean something to everyday people. Maybe those having the test imagined they would have qualities in common with their extinct cousins.

      The finding also had a peculiar effect on scientific research. Fairly soon after it was found to be modern-day Europeans who have the closer association to Neanderthals – not, as it turned out, Aboriginal Australians – the image of the Neanderthal underwent a dramatic makeover. When their remains were first discovered in 1856, the German naturalist Ernst Haeckel had suggested naming them ‘Homo stupidus’. But in the twenty-first century, these same Neanderthals, the dictionary definition of simple-minded, loutish, uncivilised thugs, have become oddly rehabilitated.

      Svante Pääbo, the director of the genetics department at the Max Planck Institute for Evolutionary Anthropology in Germany, who spearheaded some of the research that led to the discoveries of ancient interbreeding in the first place, was among those to marshal efforts to compare the genomes of Neanderthals and Homo sapiens, in the search for what differs as well as what there is in common. This was accompanied by plenty СКАЧАТЬ