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Updated 2026-06-28 14:46
The National Academies’ Gene Drive study has ignored important and obvious issues
Jim Thomas: ‘Gene drives’ seem to be the ultimate high-leverage technology. Yesterday’s report from the US National Academies begun the job of describing what is at stake, but it missed some important questions.
The long search for the earliest inhabitants of Flores
Fifty years ago, a priest started searching for the ‘hobbits’ of the Indonesian island. Now a research team has finally found themArchaeological research on Flores began in 1950 by Father Theodor Verhoeven, a Dutch Jesuit priest who had been stationed on the island since 1948 as a missionary at the local Catholic seminary. Having been trained as a classicist and with a keen interest in archaeology, he used his spare time to explore the many caves on the island. In 1956, his attention was drawn to the So’a Basin, a hot and dry area in the central part of the island, by the discovery of a fossilized tusk from the ancient elephant Stegodon near the abandoned village of Ola Bula. Intrigued, Verhoeven undertook excavations at the nearby sites, Mata Menge, Bo’a Leza and Lembah Menge, where he unearthed more Stegodon remains with stone artifacts in close association.Now, finding stone tools next to a fossil elephant is not unusual. Scientists had been finding stone tools next to the bones of extinct megafauna all across Europe, Africa and North America. But Flores was different. Located in eastern Indonesia, it is part of Wallacea, the group of islands in between the Australian and Asian continental shelves. Whereas other Indonesian islands, such as Java and Borneo, sit comfortably on the Sunda continental shelf, most Wallacean islands arose from the ocean floor and are surrounded by deep sea straits. During glacial periods, when sea levels dropped, the Sunda shelf would become exposed, and dry land would connect Sumatra, Java and Borneo to mainland Asia. Yet anything beyond the eastern edge of the continental shelf remained surrounded by water at all times. Continue reading...
Most antidepressants not working for children and teenagers –study
Only Prozac found to show measurable benefit, though authors caution their findings are not comprehensive due to a lack of available unbiased dataMost available antidepressants do not help children and teenagers with serious mental health problems and some may be unsafe, experts have warned.
Scientists uncover 11 types of acute myeloid leukaemia
Discovery that there are more categories of disease than previously thought could aid diagnosis and lead to new treatmentsThe blood cancer known as acute myeloid leukaemia (AML) is not one disease but at least 11 different types, scientists have concluded by studying the genes that cause the condition.Scientists say the discovery could aid diagnosis and lead to new treatments geared towards tackling the different types of the disease. Continue reading...
Scientists get first look at supermassive black hole 'eating' gas clouds
The observation, made accidentally by astronomers in Chile, provides the first direct evidence for the theory that black holes feed on clouds of gasAstronomers in Chile have caught the first-ever glimpse of a “supermassive” black hole preparing to gorge itself on gas clouds about a billion light years from Earth.Using the ALMA telescope in the Atacama desert, the international team spotted three clouds streaming towards a black hole at speeds of up to 800,000 miles (1.3m km) per hour. Continue reading...
Scientists aren’t gods. They deserve the same scrutiny as anyone else | Simon Jenkins
Experts preaching the ‘truth’ on healthy eating or cancer cures are not immune to the murky worlds of politics and commerceI am not obese or dying of cancer. Nor am I a hypochondriac. But not a day passes without my absorbing news of imminent salvation or disaster from some branch of science. And whereas the panjandrums of big science used to maintain an aura of lofty objectivity as they demand our attention and cash, they now seem all over the shop, fighting like rats in a sack.Take obesity. I am reeling from last month’s BBC knuckle fight between the dietician Aseem Malhotra and the government obesity tsar, Susan Jebb, over whether fat makes you fat. As they hurled accusations of deceit and corruption back and forth, there seemed only one fact. Whatever we had been told on this subject before no longer applied. I was left with a nasty sense that the phrase “the science” should now read “the money”. The following week a television programme advised me to avoid “healthy breakfasts” and tuck into bacon and eggs instead. I buried my head in a pillow. Continue reading...
'Gene-drive' organisms require far more research, say experts
Report by US committee warns it is too early to rely on genetic engineering technology that could eventually be used to tackle multiple diseasesThe US National Academies of Sciences, Engineering and Medicine have warned that it is too early to roll out a controversial technology that could help tackle malaria and other mosquito-born diseases, but backs further research.Scientists say the approach, known as gene drive, could be used to solve a host of problems, from controlling agricultural pests to eliminating invasive species and tackling diseases such Zika, dengue and malaria.
Is burning poached ivory good for elephants?
Conservationists raise serious questions about the widespread incineration of ivory stockpiles confiscated from poachersAt the end of April, Kenya incinerated 105 tonnes of confiscated elephant ivory, aiming to send a clear signal to the poachers and public alike: killing elephants for their tusks and buying ivory-based products is simply not acceptable.But do such spectacles really help conserve elephants? Or could they, in fact, be counterproductive? Continue reading...
Names of four new elements on periodic table presented for public review
International Union of Pure and Applied Chemistry says names will pay tribute to Japan, Moscow, Tennessee and a Russian scientistThere will soon be four new names on the periodic table after scientists decided to use recently discovered elements to pay tribute to Japan, Moscow, Tennessee and a Russian scientist.The names moscovium, nihonium, tennessine and oganesson were recommended on Wednesday by an international scientific group. Continue reading...
Doctors edge closer to creating babies with DNA from three people
Studies on embryos made with extra DNA showed majority were indistinguishable from standard IVF embryosDoctors are a step closer to creating babies with DNA from three people after research on healthy embryos found the procedure was likely to produce normal pregnancies.Studies on embryos made with extra DNA showed that the majority were indistinguishable from standard IVF embryos, although further tests hinted that the procedure still carried risks.
Why the new fossils shed light on evolution of Flores ‘hobbits’
Approximately 700,000-year-old fossils from Indonesian island of Flores reveal long history of enigmatic ‘hobbits’It was August 2003 and we were at the Hotel Sindha in Ruteng on the Indonesian island of Flores. We were sitting on the verandah drinking tea and passing around a strange tooth that had just been unearthed from nearby Liang Bua cave. It was clearly human in origin, but unlike the tooth of any person living or dead. We had no idea that this fossil was from a creature that would soon rewrite our understanding of human evolution.A few weeks later, on the 2nd of September 2003, the dig at Liang Bua uncovered the partial skeleton of a tiny, small-brained human adult. Now it was clear where the mystery tooth had come from. That fossil had been unusual, but the remains of this individual were truly extraordinary. A year later, the world was introduced to a previously undiscovered human species: Homo floresiensis, the Flores ‘hobbit’. Continue reading...
Fossil discovery on Flores provides clues to 'hobbit' ancestors
Researchers find what appears to be predecessors of tiny humans whose bones were first unearthed on Indonesian island in 2004More than a decade ago, researchers in a limestone cave on the Indonesian island of Flores unearthed the bones of an ancient race of tiny humans. Now, in sandstone laid down by a stream 700,000 years ago, they have found what appear to be the creatures’ ancestors.The new fossils are not extensive. A partial lower jaw and six teeth, belonging to at least one adult and two children, are all researchers have. But the importance of the remains outweighs their number. They suggest that dwarf humans roamed the island - hunting pigmy elephants and fending off komodo dragons - for more than half a million years. Continue reading...
Why do you leave things until the last minute?
The number of people trying to register to vote in the EU referendum, moments before the deadline, caused the site to crash. Why do some of us procrastinate – and can it ever be helpful?It’s been three years coming, yet on Tuesday night, thousands of us had spent too long chillin and chattin to get registerin for #votin; the government’s online voter registration site for the EU referendum crashed as midnight approached, leaving many unsure whether they would have a say on 23 June.Like a kindly but not disinterested teacher in need of good results, David Cameron has extended the deadline, allowing the mainly youthful (and, he might quietly hope, more EU-friendly) late surge to register. It’s safe to assume most of them were aware of the deadline but had just put things off. Continue reading...
Tim Peake: 'I miss the rain' ahead of return to Earth – video
After almost six months floating aboard the International Space Station and ten days before his scheduled to return to Earth, British astronaut Tim Peake says on Wednesday it will take several months to fully adjust to life back on earth. He also admits he missed the rain and comments on the EU Referendum Continue reading...
Sir Tom Kibble obituary
One of the world’s foremost theoretical physicistsSir Tom Kibble, who has died aged 83, was one of the world’s foremost theoretical physicists and, with the Nobel laureate Peter Higgs, discoverer of the “Higgs-Kibble mechanism” for giving mass to the fundamental particles of the universe. Kibble’s specific contribution to this breakthrough, half a century ago, underpinned Nobel physics prizes on at least three occasions, although he never attained this singular honour himself. But he had a distinguished career in research that has applications to all scales of size and temperature: from the microscopic constituent particles that seed matter to the large-scale structure of the entire cosmos, and from near the absolute zero of temperature to the searing heat of the hot big-bang.He was born in Madras (now Chennai), India, the son of missionaries, Walter and Janet (nee Bannerman). In 1944, Tom went as a boarder to Melville college, Edinburgh. He entered Edinburgh University as an undergraduate in 1951, and remained there until his PhD in 1958. After a year at Caltech (the California Institute of Technology), as a Commonwealth fund fellow, in 1959 he joined the theoretical physics department at Imperial College London, newly formed under Abdus Salam. Five years later, Kibble would be at the centre of an annus mirabilis in the department. Continue reading...
How should we treat science’s growing pains?
Jerome Ravetz has been one of the UK’s foremost philosophers of science for more than 50 years. Here, he reflects on the troubles facing contemporary science. He argues that the roots of science’s crisis have been ignored for too long. Quality control has failed to keep pace with the growth of science.As noted already in the Guardian’s science pages, there is no lack of initiatives to tackle science’s crisis in all its aspects, from reproducibility to the abuse of metrics, to the problems of peer review. This gives good grounds for hope that the crisis will eventually be resolved, and that it will not become a general crisis of trust in science. Should that occur, and ‘science’ ceases to be a key cultural symbol of both truth and probity, along with material beneficence, then the consequences could be far-reaching. To that end, we should consider what lies behind the malpractices whose exposure has triggered the crisis over the last decade.It is clear that a combination of circumstances can go far to explain what has gone wrong. Systems of controls and rewards that had evolved under earlier conditions have in many ways become counterproductive, producing perverse incentives that become increasingly difficult for scientists to withstand. Our present problems can be explained partly by the transformation from the ‘little science’ of the past to the ‘big science’ or ‘industrialised science’ of the present. But this explanation raises a problem: if the corrupting pressures are the result of the structural conditions of contemporary science, can they be nullified in the absence of a significant change in those conditions? Continue reading...
Oink! The future of human-pig embryos – cartoon
Scientists hope gene-editing could open the way to growing human organs in pigs. But where might it all lead? Continue reading...
Francis Crick portrait unveiled to honour breakthrough DNA work
Posthumous painting by artist Robert Ballagh celebrates scientist who, along with James Watson, made pioneering discoveryA posthumous portrait of the scientist Francis Crick, commissioned by James Watson, with whom he famously discovered the structure of DNA in 1953, has been revealed on Wednesday, the day that would have been his 100th birthday.The portrait by the Irish artist Robert Ballagh, who has previously painted Watson, will hang in the Francis Crick Institute, a new science centre named in his honour, when it opens in St Pancras, London, later this year. Continue reading...
Central bearded dragons change sex when the heat is on, study shows
Whether the Australian lizard grows up to be a male or a female depends not only on genetics but also on the temperature of its the nestDragon sex. It turns out it’s complicated.Whether the Australian central bearded dragon grows up to be a male or a female depends not only on its genetics but also on the temperature of the nest in which it is incubated. Continue reading...
Revealing lives of women in science & technology: the case of Sarah Guppy | Rebekah Higgitt
We love to hear about talented women rescued from historical obscurity, but tend to be selective when it comes to which stories are sharedThe most recent update to the Oxford Dictionary of National Biography (ODNB) adds 93 new biographies, including 18 of women. At just under 20% of the total this is higher than for the Dictionary as a whole (11%, rising to 19.3% for those born after 1840) and reflects long-term changes in historical research. The media response – in particular to the biography of Sarah Guppy (1770-1852) – has also been revealing.Guppy, as a patent-holding female inventor, is a rare type for the early 19th century but one that we are clearly eager to hear about today. It is the kind of life that (mostly women) historians have been researching since the 1970s and, more recently, has been transformed into popular role model: the archetypical example is Ada Lovelace, whose name has been adopted for a day celebrating and encouraging women in science and technology. It is interesting to note, though, just what we do and don’t want to know about Guppy and women like her. Comparing the carefully compiled ODNB entry by Madge Dresser with other accounts reveals much about how we put past lives to use today. Continue reading...
Australia's egg-laying mammals provide clues to our earliest ancestor
Platypus fossils and DNA suggest all mammals started out as venomous egg-layersI like the duck-billed platypus
Smart fish can recognise human faces, scientists find
Oxford University study could shed light human brain function and whether facial recognition is an innate or learned abilityA tropical fish can tell one human face from another despite lacking a brain section that homo sapiens and other “smart” animals use for this task, scientists said Tuesday.
Rise of the mammals began before dinosaur extinction, research suggests
Study of prehistoric mammal teeth reveals variety of shapes, helping to overturn theory that diversity was kept in check by dominance of dinosaursMammals experienced a boom in diversity long before the dinosaurs became extinct 66 million years ago, overturning the notion that their evolution was curbed by the success of the land-based reptiles, scientists have said.It has long been thought that dinosaurs kept diversity among mammals in check by dominating food and resources, with early mammals thought to be limited to small, insect-eating creatures. But recent fossil finds have called the idea into question, suggesting that they had a wider range of shapes and sizes than previously thought. Continue reading...
Marriage may improve chances of surviving a heart attack, say researchers
Study indicates that married people are 14% less likely to die from a heart attack than single patients, while divorced people fare worst of allMarried people may be more likely to survive a heart attack than those who are divorced or who never got married in the first place, researchers say.In a preliminary study based on the medical records of 25,000 people, the team found that married individuals were 14% less likely to die from a heart attack than those who were single. Continue reading...
Right up your drang, jitty or vennel | Brief letters
Pension fund ringfencing | Greatest heavyweight champion | Names for alleysOnce again, a major company folds with a gaping hole in its pension fund (Former BHS owner agreed not to take cash out, 6 June). Like most people, when paying into my firm’s pension, I assumed all the money contributed by employees and the company would be ringfenced in a fund kept totally clear of the company to protect against the sort of situation now happening with terrible regularity. Why does this not happen. Is it simply a lack of political will?
French archaeologists unearth bones from 6,000-year-old massacre
Neolithic group found in silo appeared to have suffered violent deaths, with multiple injuries to legs, hands and skullsArchaeologists have discovered the remains of a 6,000-year-old massacre that took place in Alsace, in north-eastern France.Related: French student finds tooth dating back 560,000 years Continue reading...
Sign up for Lab notes - the Guardian's weekly science update
Get a weekly round-up of the biggest stories in science, insider knowledge from our network of bloggers, and some distractingly good fun and gamesWhat’s going on in space? Has the world of medical research been rocked? And, good grief, hasn’t anyone found a dinosaur this week? For all the latest scientific breakthroughs, plus a bit of mucking about in the pursuit of knowledge, sign up for our weekly digest. Continue reading...
The new miracle cure: magic beans! Dean Burnett
Noel Edmonds extolling the cancer-tackling properties of an electronic box reminds us that offers of cures in defiance of scientific understanding is nothing new. So here’s another one.Are you sick? Proper sick? As in, are you so sick that doctors and therapists and pharmacists and nurses and scientists don’t know what else to do to help you? Well, worry no more, because now the solution is at hand, with my revolutionary new miracle cure, Magic Beans!Developed at the top secret MacGuffin labs by research leader scientist Sue Doh, Magic Beans are a revolutionary new therapy that will DEFINITELY work with your body’s own natural healing processes to promote wellbeing and fight all manner of diseases. Continue reading...
Gravitational spacecraft LISA Pathfinder opens Einstein’s universe
The European Space Agency’s technology-testing mission LISA Pathfinder is working five times better than its design specification, opening Einstein’s gravitational universe for investigation from spaceIt has taken just two months of space-based experimentation for scientists and engineers to know that the European Space Agency’s technology testing mission LISA Pathfinder is far exceeding its design requirements.The results mean that Europe could now begin building a mission to detect gravitational waves from space.
Noel Edmonds in Twitter row after claims that electronic box 'tackles cancer'
Ad watchdog ‘urgently’ investigating tweets, as presenter causes further outrage by suggesting patient’s cancer may have been caused by ‘negative attitude’Noel Edmonds, the TV presenter and enthusiast for “positive radio” projects, has become embroiled in a Twitter storm after claiming that a small box of electronics has all manner of health benefits.The host of Deal or No Deal and former acquaintance of Mr Blobby, announced on Twitter that the “simple box” slowed ageing, reduced pain, lifted depression and stress, and even tackled cancer. “Yep tackles cancer!” he emphasised. Continue reading...
Killer breakthrough – the day DNA evidence first nailed a murderer
It’s 30 years since DNA fingerprinting was first used in a police investigation. The technique has since put millions of criminals behind bars – and it all began when one scientist stumbled on the idea in a failed experimentThirty years ago this summer, at 4.30 one Thursday afternoon, a 15-year-old schoolgirl called Dawn Ashworth set off from a friend’s house in the village of Narborough, Leicestershire, and began to walk home. Dawn lived in the nearby village of Enderby, a few minutes’ walk away, and chose to take a short-cut along a footpath known locally as Ten Pound Lane. And then she vanished. It was not until two days later that Dawn’s body was found in the corner of a nearby field, covered in twigs, branches and torn-up nettles. The pathologist established that she had put up a considerable struggle before being raped and strangled.The hunt for Dawn’s killer was unlike any previous murder investigation, however: it was conducted with the help of a new science. The technique known as DNA fingerprinting was employed in a criminal investigation for the first time. Not only did this revolutionary technique lead, indirectly, to the killer being caught; it also prevented a grave miscarriage of justice. And it was employed in a manner that would, today, be likely to face resistance from some members of the public. Continue reading...
Shazam for the soul - can computers assess us better than humans?
Unlike people, algorithms are rarely prejudiced, which has important implications for assessing our personalityWe live in a reputation economy. Decisions about work, relationships, finances and health are based on what other people think of us. Our reputation is increasingly easy to crowdsource and retrieve online, though unlike Uber drivers there is no single rating to illustrate how competent we are. But we are not far off.Imagine an algorithm that synthesises all of our consumer, social network and browsing data – what we buy and sell on Amazon and eBay, what we watch on Netflix and listen to on Spotify and the internet pages we visit most (as well as our Google searches). Imagine that same algorithm inferring our likability and popularity from our interactions with our Facebook, Twitter and LinkedIn friends. Continue reading...
Why it's wrong to call addiction a disease | Marc Lewis
Apart from being scientifically baseless, the disease model undermines hope, fails to end stigma and doesn’t always get addicts the help they needIs addiction a disease? Most people think so. The idea has become entrenched in our news media, our treatment facilities, our courts and in the hearts and minds of addicts themselves. It’s a potent concept: if you’re an alcoholic or a drug addict, then you’re ill. And you’re going to remain ill. According to Nora Volkow, head of the National Institute on Drug Abuse, “addiction is a chronic, relapsing brain disease,” and that definition has been adopted by medical researchers and policy makers everywhere.Two huge benefits of the disease concept are frequently touted by Volkow and others. First, addicts need treatment, and if we don’t define addiction as a disease, they won’t get the help they require. Second, addicts don’t deserve to be scorned or denigrated: they have a disease, and we don’t put people down for being sick. Continue reading...
Lord Walton of Detchant obituary
Neurologist who improved the diagnosis and treatment of muscular dystrophyJohn Walton, Lord Walton of Detchant, who has died aged 93, was a neurologist who improved the diagnosis and treatment of muscular dystrophy. He headed several medical charities and raised substantial funds for them; and was a popular medical politician, as head variously of the General Medical Council, Royal Society of Medicine and the British Medical Association. His publications included a classic textbook, Essentials of Neurology (1961), and books on disorders of voluntary muscle, brain haemorrhage, and the history of Duchenne muscular dystrophy, the commonest form of the condition. He also co-edited the Oxford Companion to Medicine (1986).Walton was born in a Durham mining village, Rowlands Gill, to Eleanor (nee Watson) and Herbert, both Methodist teachers, who taught him the value of hard work. At medical school in Newcastle upon Tyne he was active in student politics, graduating in 1945 with a first and most of the prizes. After two years’ national service as an army doctor he returned to Newcastle, where he was inspired by two neurology greats, Fred Nattrass and Henry Miller, to study muscular dystrophy, at first thought to be a single condition that caused muscle wasting, but now known to be a group of linked genetic diseases. Continue reading...
Human-pig chimeras and the history of xenotransplantation
Researchers in California have created human-pig chimeric embryos as part of a project to grow human organs for transplantation; while it may make many people uncomfortable, we have been trying to use pigs for parts for nearly 200 years.Being held prisoner by the Bedouin might not seem like a great place to do research, but for Irish surgeon Dr Bigger it was an experience full of opportunities. In 1835 he managed to transplant a cornea into a blind pet gazelle from a wounded wild deer; the transplantation seemed to be a success, and it inspired him to seek out similar operations, to see if they could promise a cure for blindness in humans. He tried transplantation experiments on many rabbits, and came across one instance where a wolf’s cornea had been successfully implanted into a pet pointer dog (which promptly ran away and lived wild in the woods for three months). Writing up these experiments and observations in 1838, Bigger suggested that a pig’s cornea would be the best possible match for a human being.
Blood test could identify people who will respond to antidepressants
Patients will potentially be able to avoid medications that do not help them and the test could start a ‘new era’ for personalised treatment of depressionScientists have developed a blood test that could identify which people with depression will respond to treatment so that patients can avoid spending months taking antidepressants that do not help them.The experts involved believe the breakthrough could lead to depressed patients receiving personalised treatments that are more likely to relieve their symptoms. Continue reading...
Charity calls for new breast cancer drug to be given to UK women
Palbociclib may slow progress of disease by 10 months but Breast Cancer Now fears Nice will deem it not cost-effectiveA breast cancer charity is calling for women in the UK to be given access to a drug that could slow the progress of advanced breast cancer by an extra 10 months compared with current treatment but is not yet licensed in Europe despite being used widely in the US.Pfizer, the company that makes palbociclib, which is sold under the brand name Ibrance, only applied for a European licence last August, even though it was licensed for sale in the US in February 2015 and has been prescribed for 27,000 women. Continue reading...
Public invited to fill in gaps about obscure English buildings
Historic England hopes to breathe life into structures such as a Leicestershire gibbet post and a ducking stool in CanterburyHistoric England, the body responsible for listing historic structures, is for the first time inviting the public to fill some of the gaps about the more curious and obscure buildings and structures on its register.So although poor Hannah Twynnoy’s tombstone, near Malmesbury Abbey in Wiltshire, makes it brutally clear what happened in 1703 – “She had not room to make defence; for Tyger fierce Took Life away” – nothing is known of what happened to the tiger that killed her, the travelling menagerie from which it came, the animal’s owner or who paid for what would have been a relatively expensive memorial to a poorly paid working woman. Continue reading...
High-fat Mediterranean diet does not cause weight gain, study finds
Researchers found that people whose diets were rich in olive oil and nuts lost more weight than those on low-fat regimeThe Mediterranean diet, with a high fat content from olive oil and nuts, does not cause people to gain weight, a major study has found.Fear of fat is misplaced and guidelines that restrict it in our diets are wrong, say the Spanish researchers who have followed more than 7,000 people, some eating 30g of nuts or 50ml of extra virgin olive oil a day while others were put on a standard low-fat diet. Their research, they say, should put healthy fats – from vegetables and fish – back on the menu, changing attitudes and the way we eat. Continue reading...
Don’t fear pig-human embryos – they could revolutionise our old age | Johnjoe McFadden
The scare stories are misleading – these stem-cell discoveries could help us replace failing organs, and transform the lives of millions of peopleOne of the most revered monuments of ancient Egypt is the sphinx, a half-human, half-lion chimera that famously exudes a spirit of calm contemplation of human folly. Are scientists’ recent attempts to create real live human chimeras as organ donors part of that folly?In fact chimeric animal-humans are walking, talking or squeaking today. Many people carry heart valve replacements that come from pigs. Pig pancreatic cells have been transplanted into humans in an effort to treat diabetes. Many strains of laboratory mice have been bred that carry human genes and even human cells. Indeed, a strain of mice made with human brain cells appears to be marginally smarter than its non-humanised relative. Continue reading...
Researchers follow the bison for clues to mystery of ancient America's settlement
Study asserts North America was likely colonized via the Pacific coast, not the Rocky Moutains as previously thought – but when and how remains unknownThe bones of giant steppe bison and clues left by their ice age hunters have led scientists to conclude that people likely colonized North America south from Alaska along the Pacific coast, and not through the Rocky Mountains, according to a new study.Related: Sinkhole discovery suggests humans were in Florida 14,500 years ago Continue reading...
Organ transplants from 'chimera' pigs face hurdles, say geneticists
Warning of difficulties comes after injection of human stem cells into pig embryos and fears that animals’ brains could be alteredScientists attempting to grow human organs inside pigs will have to overcome significant hurdles before transplants can take place, geneticists have warned.In a Panorama documentary showing on BBC1 on Monday night, researchers at the University of California, Davis, reveal how they have injected human stem cells into pig embryos to explore the possibility of growing a human pancreas inside a pig. The research could help to solve the current shortage of organs for transplant – a situation that, according to the NHS, leads to around three deaths a day in the UK. Continue reading...
Human-pig embryos Q&A: how would 'chimeras' make transplant organs?
Scientists have successfully created part-pig, part-human embryos. How have they done this, and could viable human organs really be grown this way?Scientists at the University of California, Davis, are hoping to find a way of growing human organs inside pigs, which can then be transplanted into humans. The technique involves altering the genetic makeup of the pigs so that they do not develop a pancreas and then injecting human cells that will go on to make replacement organs inside the animals. Continue reading...
Did you solve it? Attack the (sliding) block!
In which everything slides into place.Earlier today I set you the following sliding-block puzzle: Can you get T to the bottom right-hand corner in five moves. A move takes any single piece to another position by sliding it between the others. Continue reading...
Tarantula toxin untangles pain pathways
A toxin isolated from the Togo starburst tarantula provides new insights into pain mechanisms and could lead to new treatments for irritable bowel syndromeWith their large, hairy bodies and long legs, tarantulas are an arachnophobe’s worst nightmare. For pain researchers, however, these outsized spiders are a dream come true: Their venom contains a cocktail of toxins, each of which activates pain-sensing nerve fibres in different ways, and researchers in the United States have now identified one such toxin that will help them to better understand pain, and could also lead to treatments for the chronic pain associated with irritable bowel syndrome.Physical pain signals are transmitted from the body to the brain by specialised sensory neurons called nociceptors. These pain-sensing neurons have cell bodies located just outside the spinal cord, and possess a single conductive fibre that splits in two, with one branch extending out towards the skin surface, and the shorter one entering the back of the cord. Continue reading...
Studying wet dogs might not cure cancer - but neither will cheap shots at scientists
A US senator has ridiculed a selection of ‘wasteful’ studies. But this latest attack on research spending won’t make scientists engage with the tax-paying publicOn May 10, Senator Jeff Flake arrived in the US Senate Press Gallery with cups of gummy worms and crumbled chocolate biscuit.The worms are reference to a study criticised in his new report, Twenty Questions: Government Studies That Will Leave You Scratching Your Head. Flake’s report picks apart twenty US government-funded studies, claiming to reveal a culture of waste among scientists and three federal funding agencies: the National Science Foundation (NSF), National Institutes of Health (NIH), and Defense Advanced Research Projects Agency (DARPA). Continue reading...
Scientists attempting to harvest human organs in pigs create human-pig embryo
Researchers in California have been trying to grow human organs inside pigs in attempt to tackle donor shortageScientists trying to grow human organs inside pigs in an attempt to tackle a shortage of donors have successfully created part-human, part-pig embryos.Researchers at the University of California, Davis combined human stem cells and pig DNA and allowed the embryos to mature for 28 days, before terminating the experiment and analysing the tissue.
'In your face, literature' - the Hay festival gets scientific
The Hay festival’s annual celebration of writers and writing is being infused with more and more science. And that’s just great, writes Daniel DavisI’m sitting behind Pink Floyd guitarist David Gilmour, with Booker Prize-winning author Marlon James to his right, all of us watching actors Benedict Cumberbatch, Toby Jones and Maxine Peake reading letters from Shaun Usher’s hit book Letters of Note. Just moments earlier I was standing in front of Salmon Rushdie as we queued for coffee.This is the kind of thing that only happens at the Hay Festival – a frenzied collection of more than 600 events taking place in a cluster of marquees near the picture-perfect town of Hay-on-Wye in Wales. Continue reading...
Why do smart people do stupid things? It’s simple | Andre Spicer
Thinking is hard work and asking tough questions can make you unpopular. So it’s no wonder that even clever people don’t always use their brains
We need to inject more evidence into public policy. Here’s one way to do it
Our citizen-led study of politicians, published today, has one main conclusion: we need to make research evidence faster to access, easier to decipher, and harder to ignoreIt’s a problem that comes up time and again. The day breaks with news that a prominent government policy or promise has failed. It might concern the NHS, the environment, or immigration. The next day, amidst all the bluster and posturing, someone will quietly point out that the policy never had a chance of working because it hadn’t properly considered the underlying evidence. The information might have been too hard to understand, conveniently ignored, or even gone missing.As academics who make a living out of generating and interpreting evidence, the ceaseless merry-go-round of failed policies and cherry-picked statistics can be frustrating to observe. But we also recognise that, as knowledge professionals, we are part of the problem. Scientists and academics have long kept the dirty world of politics at arm’s length. Of the tens of thousands of scientists and professional researchers in the UK, very few ever talk to policy-makers and fewer still become politicians. With researchers having such a small voice, is it surprising that obvious mistakes are made? Continue reading...
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