Hosted on Acast. See acast.com/privacy for more information.
Hosted on Acast. See acast.com/privacy for more information.
Ancient DNA evidence shows that the advent of agriculture led to more infectious disease among humans, with pathogens from animals only showing up 6,500 years ago. The DNA, extracted from human teeth, shows the history of diseases present in Eurasia over tens of thousands of years. The approach used could be a powerful way to understand how illness has shaped humanity, but it is unable to detect some bacteria that enter the bloodstream at low concentrations or some viruses, so future work could seek to fill that gap.
Research Article: Sikora et al.
News: Animal diseases leapt to humans when we started keeping livestock
DNA studies confirm that sardines were a major ingredient of the Roman Empire’s favourite fish sauce, and how analysis of animal manure identified global hotspots for antibiotic-resistance genes.
Research Highlight: Ancient DNA helps trace stinky Roman fish sauce to its source
Research Highlight: Poo of farm animals teems with drug-resistance genes
A 19-year experiment sampling bowhead whale faeces reveals a link between warming Arctic waters and increasing levels of toxic algae, researchers say. While climate change is expected to drive increases in the prevalence of harmful algal blooms, long-term data is lacking. To address this, a team worked with indigenous communities to collect and sample whale poo, showing that increases in algal toxins in the Arctic food chain are linked to rising ocean temperatures. The researchers suggest levels of these toxins need to be closely monitored to protect Arctic communities that depend on marine resources for food.
Research Article: Lefebvre et al.
An object from beyond our solar system has been spotted zipping past Jupiter, and evidence that Neanderthals created ‘fat factories’ to extract vital nutrients from animal bones.
Nature: Neanderthals boiled bones in ‘fat factories’ to enrich their lean diet
Nature: Rare find: interstellar visitor seen blazing through our Solar System
Hosted on Acast. See acast.com/privacy for more information.
Questions and doubts about vaccines are on the rise worldwide and public-health specialists worry that these trends could worsen. But while the shift in public attitudes towards immunizations can leave scientists, physicians and many others feeling disheartened, a surge of research on vaccine hesitancy is starting to offer ways to address the issue.
This is an audio version of our Feature How to speak to a vaccine sceptic: research reveals what works
Hosted on Acast. See acast.com/privacy for more information.
In this episode:
Many harmless animals mimic dangerous ones to avoid being eaten, but often this fakery is inaccurate. To help explain why evolution sometimes favours imperfect mimicry, a team 3D printed a range of imaginary insects. The novel creatures were designed to mimic wasps with varying degrees of accuracy and the team then presented these models to different predators. They showed that while birds were hard to fool, invertebrate predators were less able to discern between the mimics and accurate wasp models. The results suggest that predator perception plays a key role in the level of accuracy needed to fool them and may help explain the existence of inaccurate mimics in nature.
Research article: Taylor et al.
News and Views: 3D printing offers a way to study mimicry by insects
Ritual ‘retirement’ rather than family feud may explain broken statues of a female pharaoh, and how kelp ‘loofahs’ made by killer whales might be the first example of toolmaking by a marine mammal.
Research Highlight: The shattered statues of Queen Hatshepsut: the reasons for the wreckage
Research Highlight: Killer whales exfoliate each other with home-made scrubbers
The sea slugs that steal chloroplasts to snack on, and the researchers re-enacting a Stone Age sea-voyage.
Nature: ‘Wildest thing’: solar-powered slug steals chloroplasts and stores them for emergencies
Nature: These scientists re-enacted Stone Age voyage to Japan’s remote islands
Hosted on Acast. See acast.com/privacy for more information.
We’d like to learn more about our listeners, please help us out by filling in this short survey.
In this episode:
A significant amount of research in the AI field of computer vision is being used to analyse humans in ways that support the development of surveillance technologies, according to new research. By analysing the contents of thousands of research papers, the team behind the work showed that 90% of studies, and 86% of patents resulting from them, involved data relating to imaging humans. While there are many positive applications for this technology, such as in medical diagnostics, this work shows evidence of a pipeline from computer-vision research to surveillance.
Research article: Kalluri et al.
News and Views: Computer-vision research is hiding its role in creating ‘Big Brother’ technologies
Video: Is AI powering Big Brother? Surveillance research is on the rise
News: Wake up call for AI: computer-vision research increasingly used for surveillance
Editorial: Don’t sleepwalk from computer-vision research into surveillance
A minuscule robot that can manipulate liquid droplets, and the sensors that can identify hydrothermal explosions at Yellowstone National Park.
Research Highlight: This tiny robot moves mini-droplets with ease
Research Highlight: Sensors pinpoint the exact time of a Yellowstone explosion
This week, the Vera C. Rubin Observatory in Chile has unveiled the first images from its 3,200 megapixel digital camera. We discuss the images, and how the facility will help researchers learn more about the Universe.
News: First images from world’s largest digital camera leave astronomers in awe
How scientists created hexanitrogen, a new molecule made of six nitrogen atoms, and the why researchers are excited about the first confirmed skull of an extinct Denisovan.
Chemistry World: Most energetic molecule ever made is stable – in liquid nitrogen
Nature: First ever skull from ‘Denisovan’ reveals what ancient people looked like
Hosted on Acast. See acast.com/privacy for more information.
We’d like to learn more about our listeners, please help us out by filling in this short survey.
In this episode:
Bogong moths use the stars to help them navigate during their enormous migration across Australia, according to new research. Every year, billions of these nocturnal moths travel up to 1,000 km to cool caves in the Australian Alps, despite having never been there before. By placing moths in a flight-simulator that also acted as a planetarium, the team behind the work showed that moths could use the bright Milky Way to help them fly in the correct direction.
Research article: Dreyer et al.
Nigeria's pangolins are under threat because their meat is delicious, and how the gravitational pull of other galaxies may prevent the Milky Way colliding with Andromeda.
Research Highlight: Why pangolins are poached: they’re the tastiest animal around
Research Highlight: A long-predicted cosmic collision might not happen after all
New research suggests that shortly before modern humans successfully migrated out of Africa, they massively expanded the range of ecosystems they lived in. By combining climate modelling with data from archaeological sites across the African continent, researchers put forward evidence that 70,000 years ago, humans expanded the ecosystems they lived in to include diverse habitat types from forests to deserts. The authors suggest this ability to live in different places may have helped the later humans that migrated out of the continent around 50,000 years ago.
Research article: Hallet et al.
Blowing bubble-rings could be humpback whales' way of trying to communicate with humans, and the research suggesting that everyone’s breathing pattern is unique.
Science Alert: Humpback Whale Bubble Rings May Be an Attempt to Communicate With Us
Nature: How you breathe is like a fingerprint that can identify you
Hosted on Acast. See acast.com/privacy for more information.
According to legend, physicist Werner Heisenberg formulated the mathematics behind quantum mechanics in 1925 while on a restorative trip to the remote North Sea island of Heligoland.
To celebrate the centenary of this event, several hundred researchers have descended on the island to take part in a conference on all things quantum physics. Nature reporter Lizzie Gibney was also in attendance, and joined us to give an inside track on the meeting.
News: Happy birthday quantum mechanics! I got a ticket to the ultimate physics party
Hosted on Acast. See acast.com/privacy for more information.
Researchers have developed a soft electronic implant that can measure brain activity of amphibian embryos as they develop. Understanding the neural activity of developing brains is a key aim for neuroscientists, but conventional, rigid probes can damage growing brains. To overcome this, a team have developed a flexible mesh that stretches with the brain and tested it by monitoring single neuron activity during development of frog and axolotl embryos. More testing and ethical considerations will be required, but the researchers hope that eventually such implants could help with neurological conditions that affect humans.
Research article: Sheng et al.
The exoplanet slowly evaporating into space, and cockatoos that have figured out an innovative way to stay hydrated.
Research Highlight: Solved: the mystery of the evaporating planet
Research Highlight: Clever cockatoos learn an easy way to quench their thirst
By combining AI tools with mechanical engineering techniques, a researcher has developed a new way to speed up the restoration of damaged paintings. The technique creates a removable mask that can be overlaid onto a painting to cover any damage apparent in the artwork. It was successfully tested on an oil painting, fixing a large number of damaged areas in only a few hours. This could offer a significant speed-boost to painting restoration, which can often take months, or even years.
Research article: Kachkine
Video: Meet the engineer who invented an AI-powered way to restore art
A new ranking system could make it easier to spot universities that are chasing publishing metrics at the expense of rigorous science, and evidence that cutting off rhinos’ horns deters poachers.
Nature: ‘Integrity index’ flags universities with high retraction rates
AP: Cutting off rhinos’ horns is a contentious last resort to stop poaching. A new study found it works
Hosted on Acast. See acast.com/privacy for more information.
In this Podcast Extra, we examine President Donald Trump's calls for NASA to land humans on Mars. Although the White House has proposed spending some US$1 billion in 2026 on Mars plans, critics say the final cost will likely be hundreds of billions of dollars spread over a number of years.
This call comes amidst plans to drastically reduce NASA's funding, and the proposed cancelling of dozens of the space agency's missions, including projects to study Earth, Mars and Venus.
News: Trump wants to put humans on Mars — here’s what scientists think
News: Five key climate and space projects on Trump’s chopping block
News: Are the Trump team’s actions affecting your research? How to contact Nature
Hosted on Acast. See acast.com/privacy for more information.
Iron deficiency in mice mothers can sometimes result in their offspring developing female sex organs despite having male sex genes, according to new research. While genetics has been thought to be the primary factor in determining offspring sex in mammals, the new work shows that a lack of iron disrupts an enzyme involved in the development of testes, leading to some mice with male sex-determining genes being born with female genitalia and ovaries. This suggests that sex determination is controlled by more than genetics, but more work will need to be done to understand the precise mechanisms involved.
News: Male mice can grow ovaries if their pregnant mums are iron deficient
Research article: Okashita et al.
How climate change is making dust storms more likely, and understanding the genetics of a boy who couldn’t feel pain.
Research Highlight: The perfect storm for dust storms, thanks to global warming
Research Highlight: CRISPR helps to show why a boy felt no pain
The contributions that small-scale fishers make to sustainable fishing have been described as ‘invisible’, but now a huge research project has revealed the role this community plays in feeding populations and protecting oceans. Looking at data from 58 countries, researchers have shown that small-scale fishers account for around 40% of the global catch and feed approximately 25% of the world’s population. The people behind the initiative hope that these data can help give a voice to small-scale fishers as people look for ways to feed the world sustainably.
Immersive : Small-scale fisheries
The discovery of an ‘ambidextrous’ protein; and why humpback whales, despite their enormous eyes, appear to be shortsighted.
Nature: Rare ‘ambidextrous’ protein breaks rules of handedness
Discover Magazine: Big Eyes, Blurry Vision: Why Humpback Whales Struggle to See Clearly
Hosted on Acast. See acast.com/privacy for more information.
With the world looking likely to blow past the temperature targets laid out in the 2015 Paris climate agreement, a growing number of voices are saying that carbon removal technologies will be necessary if humanity is to achieve its long-term climate goals. If these approaches succeed, they could help nations and corporations to meet their climate commitments — and help the world to halt global warming.
However, questions remain about the financial viability of these technologies, and whether they can live up to the hype.
This is an audio version of our Feature: Three ways to cool Earth by pulling carbon from the sky
Hosted on Acast. See acast.com/privacy for more information.
A spike in papers formulaically analysing a public data set has sparked worries that AI is being used to generate low quality and potentially misleading analyses.
Nature: AI linked to explosion of low-quality biomedical research papers
Researchers in China have created contact lenses that can allow humans to see infrared light, which could help with search and rescue missions, sending secret messages and even surgery.
Nature: These contact lenses give people infrared vision — even with their eyes shut
Geologists have uncovered the strongest evidence yet that Earth's core is leaking. Rocks from Hawaii were found to contain isotopes of a rare element, which suggests the material originally came from the core. More work will need to be done to rule out other explanations.
Nature: Is Earth’s core leaking? Volcanic rocks provide strongest evidence yet
Hosted on Acast. See acast.com/privacy for more information.
Researchers have developed two compounds that can kill malaria-causing parasites within mosquitoes, an approach they hope could help reduce transmission of the disease. The team showed that these compounds can be embedded into the plastics used to make bed nets, providing an alternative to insecticide-based malaria-control measures, which are losing efficacy in the face of increased resistance.
Research article: Probst et al.
The sunlight-powered device that can harvest drinkable water from desert air, and evidence that the world’s richest people are disproportionately responsible for climate impacts.
Research Highlight: Atacama sunshine helps to pull water from thin air
Research Highlight: The world’s richest people have an outsized role in climate extremes
Researchers have found specific genetic mutations that can lead to pregnancy loss. It’s known that errors, such as the duplication of chromosomes, can lead to nonviable pregnancies but less has been known about non-chromosomal genetic errors. The new work identifies DNA sequence changes that can lead to a non-viable pregnancy. This may offer clinicians the ability to screen embryos for these changes to help avoid pregnancy loss.
Research article: Arnadottir et al.
Bespoke CRISPR-based therapy treats baby boy with devastating genetic disease, and the ‘anti-spice’ compounds that can lower chillies’ heat.
Nature: World’s first personalized CRISPR therapy given to baby with genetic disease
New Scientist: Chemists discover 'anti-spice' that could make chilli peppers less hot
Hosted on Acast. See acast.com/privacy for more information.
Researchers have developed a portable antimatter containment device and tested it by putting it in a truck and driving it around CERN. Their system could represent a big step forward in efforts to take particles made at CERN’s ‘antimatter factory’ and transport them to other labs, something currently impossible due to antimatter being destroyed upon contact with matter. The team showed the feasibility of their approach by using the system to safely transport particles of matter and are now looking to adapt it to ferry antimatter particles.
Research article: Leonhardt et al.
How a tradition of female diving on a South Korean island might have shaped the genomes of the island’s population, and a poison-dart frog that curiously seems to be monogamous.
Research Highlight: How Korea’s female divers have adapted to cold plunges
Research Highlight: A ‘hidden gem’ of the Amazon is a frog with odd habits
Physicists have tackled a longstanding problem in physics — understanding how two black holes gravitationally interact as they fly past each other — which could help with future detections of the gravitational waves that would be created by these events. Rather than repeatedly running expensive computer simulations to approximate the answer to this problem, a team of theorists have come up with a mathematical formula to describe a black hole fly-by, which can be run in a matter of seconds. Their results could be used to identify the tell-tale signatures of these events when they actually occur.
Research article: Driesse et al.
How physicists turned lead into gold, for a microsecond and at tremendous cost, and the genetics of the skunk cabbage’s foul odour.
Nature: Physicists turn lead into gold — for a fraction of a second
Video: Scientists turn lead into gold
Nature: How skunk cabbages and other smelly plants brew their foul odour
Hosted on Acast. See acast.com/privacy for more information.
In this Podcast Extra, we examine recent developments US National Science Foundation, which has seen significant numbers of research grants terminated. In addition, there have been freezes on funding for new grants and any additional money to existing ones. We also discuss US President Donald Trump’s proposed budget for fiscal year 2026, which calls for disproportionately large cuts to federal science funding.
News: Exclusive: NSF stops awarding new grants and funding existing ones
News: Trump proposes unprecedented budget cuts to US science
News: Are the Trump team’s actions affecting your research? How to contact Nature
Hosted on Acast. See acast.com/privacy for more information.
Selective fishing of older herring has resulted in a large shift in the migration pattern of these fish, according to new research. For years, herring have visited sites on the south coast of Norway to spawn, but in 2020 a rapid shift was seen, with the fish instead visiting areas hundreds of kilometres to the north. Researchers have concluded that too many older fish have been removed from these waters, preventing the knowledge of the best spawning grounds being passed to younger, less experienced fish. This finding shows how human activity can affect animal migration, which could have serious consequences for the delicately balanced ecosystems built around them.
Research article: Slotte et al.
Archaeologists have identified tools that the ancient Maya may have used for tattooing, and the self-assembling stable structures that may help ‘forever chemicals’ persist in nature.
Research Highlight: Tattoo-making tools used by ancient Maya revealed
Research Highlight: ‘Forever’ molecules bunch themselves into cell-like structures
AI companions — apps where humans build relationships with computers — are hugely popular, with millions of people around the world using them. But despite increased social and political attention, research investigating how these systems can affect users has been lacking. We find out about the latest research in this space.
News Feature: Supportive? Addictive? Abusive? How AI companions affect our mental health
A technique that lets researchers directly edits proteins within living cells, and how a fibre-rich, low-fat diet could help replenish populations of gut microbes ravaged by antibiotics.
Nature: Powerful protein editors offer new ways of probing living cells
Nature: How to fix a gut microbiome ravaged by antibiotics
Hosted on Acast. See acast.com/privacy for more information.
In this episode:
100 days into his term, President Donald Trump and his administration have already caused the biggest shakeup in modern scientific history, slashing funding, bringing large swathes of US research to a standstill and halting many clinical trials. But many fear these actions are just the beginning. We look at what the long-term impacts of these decisions might be for science in the United States and the world.
Nature: Will US science survive Trump 2.0?
A distant planet that orbits two stars, at a right angle, and how fringe-lipped bats’ hearing helps them find palatable amphibians.
Research Highlight: ‘Tatooine’-like planet orbits two stars ― but at a weird angle
Research Highlight: For these bats, eavesdropping is a valuable learnt skill
The first skeletal evidence from bones that Roman gladiators fought lions, and scientists finally pinpoint the genes responsible for three of the pea traits studied by Gregor Mendel.
BBC News: Bites on gladiator bones prove combat with lion
Nature: Century-old genetics mystery of Mendel’s peas finally solved
Hosted on Acast. See acast.com/privacy for more information.
Research shows that, over the past two decades, rates of mental illness have been increasing in adolescents in many countries. While some scientists point to soaring use of smartphones and social media as a key driver for this trend, others say the evidence does not show a large effect of these technologies on teenagers’ psychological health.
At the heart of the dispute is a large, complex and often conflicting body of research that different researchers interpret in different ways. This has left parents unsure what to do.
This is an audio version of our Feature: Do smartphones and social media really harm teens’ mental health?
Hosted on Acast. See acast.com/privacy for more information.
Using a laser system to activate specific eye cells, a team has allowed five study participants to perceive a vibrant blue-greenish hue well outside the natural range of colours seen by humans. Although the setup required to accomplish this feat is currently complicated, this finding could provide more understanding about how the brain perceives colour and could one day help boost the vision of people with colour blindness.
Nature News: Brand-new colour created by tricking human eyes with laser
The US Food and Drug Administration has approved the first trial to test whether genetically modified pig livers can be used safely to treat people with organ failure. In the initial phase of the trial, four people with severe liver failure will be temporarily connected to an external pig liver that will filter their blood. Participants will then be monitored for a year for safety and changes in liver function. The organs have been genetically modified to make them more compatible with humans.
Nature News: Pig livers for people: US regulator greenlights first safety trial
Using a designer ‘circulatory system’, a team of researchers have created what they think is the largest piece of meat grown in the laboratory yet. One of the challenges to producing larger pieces of lab-grown meat has been providing cells with sufficient oxygen and nutrients, something the team’s new setup helps overcome. They used it to grow a chunk of chicken muscle about the size of a nugget, but multiple challenges remain before meat produced in this way could make it to market.
Nature News: Winner, winner, lab-made dinner! Team grows nugget-sized chicken chunk
Hosted on Acast. See acast.com/privacy for more information.
Categorizing things is central to science. And there are dozens of systems scientists have created to name everything from the trenches on the sea bed to the stars in the sky.
But names have consequences. What’s in a name is a series exploring naming in science and how names impact the world. We look at whether the system of naming species remains in step with society, how the names of diseases can create stigma, and how the names chosen by scientists can help, or hinder, communication with the public.
In episode three, we're looking at how the names chosen for concepts in physics can inadvertently send researchers down very specific research avenues while distracting them from others. In this podcast we hear five stories about the importance of names and how much can be lost in translation when physicists try and label the unknown.
For a list of sources and music used, please visit the podcast show notes
Hosted on Acast. See acast.com/privacy for more information.
In this episode:
Researchers have created a ‘pangenome’ containing the genomes of multiple potato types, something they believe can help make it easier to breed and sequence new varieties. The potato's complicated genetics has made it difficult to sequence the plant's genome, but improvements in technology have allowed the team to combine sequences, allowing then to look for subtle differences in between varieties.
Research Article: Sun et al.
How ancient DNA analysis revealed that unusually bound medieval books are covered in sealskin, and top quarks and their antimatter counterparts are detected after nuclear smash-ups at the Large Hadron Collider.
Research Highlight: Mystery of medieval manuscripts revealed by ancient DNA
Research Highlight: Top quarks spotted at mega-detector could reveal clues to early Universe
Analysis from Nature reveals the 25 highest-cited papers published this century and explores why they are breaking records. We hear about the field that got the highest number of papers on the list, and whether any feature in the all-time top citation list.
News Feature: Exclusive: the most-cited papers of the twenty-first century
News Feature: These are the most-cited research papers of all time
News Feature: Science’s golden oldies: the decades-old research papers still heavily cited today
Re-analysis of a cosmic collision shows evidence of a planet spiralling into its host star, and how shrugging off lighting strikes gives tonka bean trees an evolutionary edge.
Science: Astronomers spot a planetary ‘suicide’
Live Science: Tropical tree in Panama has evolved to kill its 'enemies' with lightning
Vote for How whales sing without drowning, an anatomical mystery solved
Vote for Cancer-busting vaccines are coming: here's how they work
Hosted on Acast. See acast.com/privacy for more information.
