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Neanderthal sex and lesbian albatrosses: the perils of populist science

Michael Brooks on the misinterpretation of eye-catching research.

Early human beings had sex with Neanderthals. Sex! It grabs the attention so easily, that story. So easily that even biologists believed it for a while. Now, though, they are trying to rein themselves in a bit.

This story, which first broke a couple of years ago, was based on an analysis of the Neanderthal genome. It produced some interesting facts. Some Neanderthals had ginger hair. Some were lactose-intolerant. And, most exciting of all, some of their genes live on in modern non-Europeans. The whole costly, time-consuming effort to sequence the genome had paid off. Our ancestors had sex with the Neanderthals. Sex! Sex with our evolutionary cousins! Hardly a newspaper across the world failed to carry the story.

Hardly any of them reported the small print, though. The disclaimer was that, being evolutionary cousins, our two species share a common ancestor, and so they could have common genes for that terribly dull reason. Now a paper published by the US National Academy of Sciences has poured further cold water on the sex-between-species hypothesis. Its analysis of the genetics says there is no evidence that the Neanderthals, who lived in Europe, were seduced by the early human beings who moved out of North Africa. The scandal is off.

Yet there is hope (and let’s face it, we want it to be true). New technology can tell us how recently a gene evolved. It turns out that the shared genes almost certainly emerged after the Neanderthals first came on to the scene. They cannot be from a common ancestor. The research hasn’t been published yet, so a little caution would be becoming, but it seems we can soon get back to being the result of humans and Neanderthals having sex. Sex!

We do like stories about sex. Ideally, they will be about illicit practices or deviations from whatever constitutes the norm. Hence the success of the Fifty Shades series. Hence the success of certain newspapers (“Five Times A Night!”). It gives us a context in which we can gauge our own contribution.

We could wring our hands about our unreconstructed nature but sex is at the centre of human thought, and always has been. Some of the earliest cave art has erotic themes. We didn’t get where we are without genetic programming that makes us value eating, drinking and having sex.

Add to that our inbuilt compulsion to tell stories and draw lessons from them, and you have a heady mix. When science investigates matters of sex, the discoveries don’t belong to science for long. From female fruit bats that perform fellatio on their partners to same-sex couplings in the Laysan albatross, science’s discoveries are powerful. That is because we can bend the scientific facts to our own ends.

Cheap tricks

The Sunday Times once heralded a study of sheep neurobiology as something that “could pave the way for breeding out homosexuality in humans”. New Scientist has occasionally gone for reader entrapment, writing up a paper titled Female-Limited Polymorphism in the Copulatory Organ of a Traumatically Inseminating Insect as “Bat bugs turn transsexual to avoid stabbing penises”. It’s a cheap trick, but it gets a click.

Those two examples are not chosen at random – they come from a paper published in Nature this month. In it, two biologists offer cautionary advice to scientists researching sexual behaviour in the animal kingdom: if you talk to journalists in terms that might remotely be applied to human beings, be sure that that is how they will be applied. There’s no such thing as a lesbian albatross, but when you pit science against sex there can be only one winner. Sex!

Michael Brooks’s “The Secret Anarchy of Science” is published by Profile Books (£8.99).

Michael Brooks holds a PhD in quantum physics. He writes a weekly science column for the New Statesman, and his most recent book is At the Edge of Uncertainty: 11 Discoveries Taking Science by Surprise.

This article first appeared in the 27 August 2012 issue of the New Statesman, The end of the political cartoon?

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Geoffrey Howe dies, aged 88

Howe was Margaret Thatcher's longest serving Cabinet minister – and the man credited with precipitating her downfall.

The former Conservative chancellor Lord Howe, a key figure in the Thatcher government, has died of a suspected heart attack, his family has said. He was 88.

Geoffrey Howe was the longest-serving member of Margaret Thatcher's Cabinet, playing a key role in both her government and her downfall. Born in Port Talbot in 1926, he began his career as a lawyer, and was first elected to parliament in 1964, but lost his seat just 18 months later.

Returning as MP for Reigate in the Conservative election victory of 1970, he served in the government of Edward Heath, first as Solicitor General for England & Wales, then as a Minister of State for Trade. When Margaret Thatcher became opposition leader in 1975, she named Howe as her shadow chancellor.

He retained this brief when the party returned to government in 1979. In the controversial budget of 1981, he outlined a radical monetarist programme, abandoning then-mainstream economic thinking by attempting to rapidly tackle the deficit at a time of recession and unemployment. Following the 1983 election, he was appointed as foreign secretary, in which post he negotiated the return of Hong Kong to China.

In 1989, Thatcher demoted Howe to the position of leader of the house and deputy prime minister. And on 1 November 1990, following disagreements over Britain's relationship with Europe, he resigned from the Cabinet altogether. 

Twelve days later, in a powerful speech explaining his resignation, he attacked the prime minister's attitude to Brussels, and called on his former colleagues to "consider their own response to the tragic conflict of loyalties with which I have myself wrestled for perhaps too long".

Labour Chancellor Denis Healey once described an attack from Howe as "like being savaged by a dead sheep" - but his resignation speech is widely credited for triggering the process that led to Thatcher's downfall. Nine days later, her premiership was over.

Howe retired from the Commons in 1992, and was made a life peer as Baron Howe of Aberavon. He later said that his resignation speech "was not intended as a challenge, it was intended as a way of summarising the importance of Europe". 

Nonetheless, he added: "I am sure that, without [Thatcher's] resignation, we would not have won the 1992 election... If there had been a Labour government from 1992 onwards, New Labour would never have been born."

Jonn Elledge is the editor of the New Statesman's sister site CityMetric. He is on Twitter, far too much, as @JonnElledge.