ADHD may have been an evolutionary advantage, research suggests

Traits associated with the neurodevelopmental disorder could have helped early humans when foraging for food

Traits common to attention deficit hyperactivity disorder (ADHD), such as distractibility or impulsivity, might have been an evolutionary advantage for our ancestors by improving their tactics when foraging for food, researchers have said.

ADHD is a neurodevelopmental disorder with symptoms including impulsiveness, disorganisation and difficulty focusing. While estimates of prevalence have varied, diagnoses have been rising in many countries, including the UK.

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Combining three healthy behaviours can lower IBS risk, study finds

People who tick at least three out of five boxes including not smoking and good sleep are found to have 42% lower risk

Combining three healthy behaviours can reduce the risk of irritable bowel syndrome by 42%, a study suggests.

IBS affects the digestive system and its symptoms include stomach cramps, bloating, diarrhoea and constipation. People can suffer for days, weeks or months at a time, and symptoms can come and go. IBS is thought to affect up to one in 10 people worldwide.

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Japan to launch world’s first wooden satellite to combat space pollution

The environmentally friendly LignoSat probe – set to orbit this summer – has been created to combat harmful aluminium particles

Japanese scientists have created one of the world’s most unusual spacecraft – a tiny satellite that is made of timber.

The LignoSat probe has been built of magnolia wood, which, in experiments carried out on the International Space Station (ISS), was found to be particularly stable and resistant to cracking. Now plans are being finalised for it to be launched on a US rocket this summer.

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Japan launches second flagship H3 rocket a year after inaugural flight self-destructed

Space agency announces ‘successful liftoff’ and says rocket has already released one micro-satellite

Japan’s space agency has successfully launched a second test model of its new flagship rocket H3, in a welcome boost to its space program after last year’s inaugural flight failed.

The launch further burnishes the country’s space credentials after the historic “pinpoint” moon landing of Japan’s Slim spacecraft last month.

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Private moon lander lifts off aiming for first US lunar touchdown in 52 years

Intuitive Machines’ Nova-C lander sets off on SpaceX rocket from Cape Canaveral on weeklong journey

A moon lander built by the Houston-based aerospace company Intuitive Machines was launched from Florida early on Thursday on a mission to conduct the first US lunar touchdown in more than a half century and the first by a privately owned spacecraft.

The Nova-C lander, nicknamed Odysseus, lifted off shortly after 1am EST atop a Falcon 9 rocket flown by Elon Musk’s SpaceX from Nasa’s Kennedy Space Center in Cape Canaveral.

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Genetics journal retracts 18 papers from China due to human rights concerns

Researchers used samples from populations deemed by experts and campaigners to be vulnerable to exploitation, including Uyghurs and Tibetans

A genetics journal from a leading scientific publisher has retracted 18 papers from China, in what is thought to be the biggest mass retraction of academic research due to concerns about human rights.

The articles were published in Molecular Genetics & Genomic Medicine (MGGM), a genetics journal published by the US academic publishing company Wiley. The papers were retracted this week after an agreement between the journal’s editor in chief, Suzanne Hart, and the publishing company. In a review process that took over two years, investigators found “inconsistencies” between the research and the consent documentation provided by researchers.

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Trial offers hope for millions that jab could prevent rheumatoid arthritis

An existing drug for the chronic disease could slow or stop its progression, researchers say

Scientists have discovered a jab that could prevent rheumatoid arthritis (RA), a development experts say could offer hope to millions at risk of the disease.

RA is a chronic disease that causes inflammation in the body and triggers pain in the joints. About 18 million people globally are affected by the condition, which can lead to heart, lung or nervous system problems, according to the World Health Organization.

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Stone age wall found at bottom of Baltic Sea ‘may be Europe’s oldest megastructure’

Structure stretches for almost a kilometre off coast of Germany and may have once stood by a lake

A stone age wall discovered beneath the waves off Germany’s Baltic coast may be the oldest known megastructure built by humans in Europe, researchers say.

The wall, which stretches for nearly a kilometre along the seafloor in the Bay of Mecklenburg, was spotted by accident when scientists operated a multibeam sonar system from a research vessel on a student trip about 10km (six miles) offshore.

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Roman egg found in Aylesbury still has contents after 1,700 years

Archaeologists and naturalists astonished to find yolk and albumen that may reveal secrets about the bird that laid it

It was a wonderful find as it was, a cache of 1,700-year-old speckled chicken eggs discovered in a Roman pit during a dig in Buckinghamshire.

But to the astonishment of archaeologists and naturalists, a scan has revealed that one of the eggs recovered intact still has liquid – thought to be a mix of yolk and albumen – inside it, and may give up secrets about the bird that laid it almost two millennia ago.

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Hurricanes becoming so strong that new category needed, study says

Scientists propose new category 6 rating to classify ‘mega-hurricanes’, becoming more likely due to climate crisis

Hurricanes are becoming so strong due to the climate crisis that the classification of them should be expanded to include a “category 6” storm, furthering the scale from the standard 1 to 5, according to a new study.

Over the past decade, five storms would have been classed at this new category 6 strength, researchers said, which would include all hurricanes with sustained winds of 192mph or more. Such mega-hurricanes are becoming more likely due to global heating, studies have found, due to the warming of the oceans and atmosphere.

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Cern aims to build €20bn collider to unlock secrets of universe

Research lab submits plans for next-generation model at least three times size of Large Hadron Collider

Officials at Cern, home to the Large Hadron Collider near Geneva, are pressing ahead with plans for a new machine that would be at least three times bigger than the existing particle accelerator.

The Large Hadron Collider, built inside a 27km circular tunnel beneath the Swiss-French countryside, smashes together protons and other subatomic particles at close to the speed of light to recreate the conditions that existed fractions of a second after the big bang.

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‘The situation has become appalling’: fake scientific papers push research credibility to crisis point

Last year, 10,000 sham papers had to be retracted by academic journals, but experts think this is just the tip of the iceberg

Tens of thousands of bogus research papers are being published in journals in an international scandal that is worsening every year, scientists have warned. Medical research is being compromised, drug development hindered and promising academic research jeopardised thanks to a global wave of sham science that is sweeping laboratories and universities.

Last year the annual number of papers retracted by research journals topped 10,000 for the first time. Most analysts believe the figure is only the tip of an iceberg of scientific fraud.

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‘Edible meadow’ for improved gut health to feature at Chelsea flower show

Flowers used in the ‘microbiome garden’ can enhance gut health by being eaten or just walked past

An “edible meadow” designed to improve gut health is to be displayed at the Chelsea flower show this year.

The two gardeners behind the “microbiome garden” say it will be filled with flowers that can enhance gut health by being eaten or just walked past.

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‘Nemo’ clownfish drive away species with same stripes, study suggests

Researchers say they have found how anemonefish identify unwelcome guests of their own kind, by counting white markings

Unlike the star of Disney’s Finding Nemo, real-life common clownfish are not keen on sharing their home with members of their own species.

Researchers say they have discovered how they kick unwelcome guests out, by counting the stranger’s vertical white markings.

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Vets urged to stop giving pesticide flea treatments after river pollution study

Exclusive: Pet owners risk contaminating their hands with neurotoxins for at least 28 days after application, scientists find

Vets should limit the use of flea treatments containing pesticides on dogs and cats, scientists have said, after a study revealed the vast amount of toxic substances in them that end up in rivers.

Pet owners using these flea treatments risk contaminating their hands with fipronil and imidacloprid, two insecticides, for at least 28 days after the treatment has been applied, according to research by the University of Sussex and Imperial College London.

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EU to delay new green rule in bid to appease protesting farmers

Delay to rules on setting aside land to encourage biodiversity offered as concession amid continuing protests

Farmers protesting across Europe have won their first concession from Brussels, with the EU announcing a delay in rules that would have forced them to set aside land to encourage biodiversity and soil health.

About 10,000 French farmers stepped up their protests on Wednesday, with at least 100 blockades on major roads across France, as 18 farmers were arrested for blocking traffic as they tried to reach the wholesale food market at Rungis, south-east of Paris and 79 others were detained after they managed to get inside.

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Baby shark! Researchers may have captured first image of newborn great white

California scientist and film-maker spot apparent pup – never before seen in the wild – in drone pictures

Researchers in California may have gotten the first ever look at a newborn great white shark, which they captured in drone images taken last summer.

The newborn animal has never before been spotted in the wild. But in July, the wildlife film-maker Carlos Gauna and Phillip Sternes, a biology doctoral student at the University of California, Riverside, glimpsed something unexpected in the waters near Santa Barbara on California’s central coast.

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‘Old smokers’: astronomers discover giant ancient stars in Milky Way

Stars sat fading quietly for years before suddenly puffing out vast clouds of smoke

Astronomers have discovered a mysterious group of giant elderly stars at the heart of the Milky Way that are emitting solar system-sized clouds of dust and gas.

The stars, which have been named “old smokers”, sat quietly for many years, fading almost to invisibility, before suddenly puffing out vast clouds of smoke. The discovery was made during the monitoring of almost a billion stars in infrared light during a 10-year survey of the night sky.

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World-first blood test for brain cancer may increase survival rates, say experts

Inexpensive test can help diagnose even ‘inaccessible’ tumours earlier, speeding up treatment and improving outcomes

Surgeons and scientists have developed a world-first blood test for brain cancer that experts say could revolutionise diagnosis, speed up treatment and boost survival rates.

For years, brain tumours have remained notoriously difficult to diagnose. They affect hundreds of thousands of people worldwide each year, and kill more children and adults under the age of 40 in the UK than any other cancer.

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Lions making fewer zebra kills due to ‘chain reaction’ involving invasive ants

Hunting by Kenyan lions impeded in ‘ecological chain reaction’ as big-headed ants fail to stop elephants stripping acacia trees – the cats’ ambush cover

When a lion decides to chase down a zebra it seems as though nothing can stop it. But now researchers have discovered these enormous predators are being thwarted by a tiny foe: ants.

Scientists have found the spread of big-headed ants in east Africa sets off a situation leading to lions making fewer zebra kills.

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