Share
Nature Podcast
Two ants, two species, one mother
Researchers have made an unusual observation that appears at odds with biology: an ant, known as the Iberian Harvester Ant can produce offspring of two completely different species. Many ants need to mate with other species to produce workers that are a genetic mix of the two, known as hybrids. But in Sicily, a team found hybrid worker ants but no trace of the father. They suggest that the one species present, Messor ibericus, is able to lay its own eggs, but also eggs of another species, Messor structor. These offspring can then mate to produce the hybrid workers. This strategy conflicts with several conventional definitions of what a species is, which may prompt a rethink of these already blurry concepts.
Research Article: Juvé et al.
News and Views: Ant queens produce sons of two distinct species
News: ‘Almost unimaginable’: these ants are different species but share a mother
Humans are living longer but a life expectancy of a hundred appears out of reach — plus, how light pollution is making birds sing for longer.
Research Highlight: When will life expectancy reach 100? No time soon
Research Highlight: Bright city lights make birds around the world sing longer
Researchers have discovered that steel truss bridges possess a number of mechanisms that make them resilient to collapse, even after damage. Steel truss bridges are a common kind of bridge, but many are ageing and under increased pressure due to climate change and increased vehicle loads. To understand how damage affects these bridges a team of engineers built a scale replica of a bridge section and monitored how it coped when different sections were cut. They found six distinct resistance mechanisms that allowed the bridge to continue carrying heavy loads even with the damaged sections. They hope these data will help fortify existing bridges and inform the design of future bridges to help prevent catastrophic collapse.
Research Article: Reyes-Suárez et al.
The chemistry underlying why beer drinkers fall into two taste camps, and how a deep-sea worm uses arsenic to survive its toxic environment..
Nature: Beer lovers fall into two flavour camps — which one are you in?
Science: Deep-sea worms fight poison with poison to survive in hydrothermal vents
More episodes
View all episodes
Your phone can use tiny skin-colour changes to measure your heart rate
18:23|In this episode:00:57 How your smartphone’s camera could measure your heart rateResearch article: Liao et al.08:55 Research HighlightsNature: A star gone rogue tears through the GalaxyNature: Gold keeps glittering courtesy of surface chemistry11:04 Should you try something new in a restaurant? Maths has the answerNature: Feynman solved the ‘restaurant dilemma’ 50 years ago — now a study confirms his mathematicsSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
Briefing Chat: When to trust eyewitness memory – according to science
17:14|In this episode:00:21 When witnesses identify suspects from police line-ups, confidence mattersNature: Memory on trial: the new science of when to trust eyewitness testimony07:15 Registered Reports: how this ‘double peer review’ process could benefit scientists and their resultsNature: Nature is expanding Registered Reports to all the fields in which we publishMajor Ebola outbreak is escalating: what happens next
12:01|On 17 May the World Health Organization (WHO) declared an ongoing Ebola outbreak a public health emergency of international concern. Centred on the Democratic Republic of the Congo and Uganda, the outbreak has seen mounting numbers of suspected cases and deaths linked to the rare Bundibugyo species of Ebola virus.In this podcast we hear what's currently known about the outbreak and the efforts of clinicians, researchers and public health officials to halt its progress.Nature: Ebola outbreak is a global health emergency: what happens nextNature: Race begins to trial Ebola drugs amid current outbreakNature: Ebola outbreak spirals out of control: how might it have started?Nature: Will this Ebola outbreak be the biggest yet?AI ‘scientists’ promise to accelerate research — how do they work?
27:55|In this episode:00:46 Meet the AI scientists designed to accelerate researchResearch article: Ghareeb et al.Research article: Gottweis et al.Nature: Teams of AI agents boost speed of researchEditorial: Why AI cannot do good science without humansNature: Do you hate or love AI? Take Nature’s poll13:25 Research HighlightsNature: Dried to survive: desiccated tardigrades tolerate high heatNature: Pristine Antarctic ice records the Solar System’s travels15:35 Using LiDAR to look around cornersResearch article: Somasundaram et al.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
Briefing Chat: Hantavirus — what this outbreak reveals about the disease
09:34|In this episode:00:34 What questions remain about the hantavirus outbreak?Nature: Hantavirus outbreak exposes uncertainty about how disease spreadsNature: There is no vaccine for deadly hantavirus: what that means for future outbreaksSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.Red-light therapy is all the rage — does it work?
21:56|In this episode:00:42 Is red-light therapy all hype?Disclaimer: The opinions and assertions expressed herein by Juanita Anders are those of the speaker and do not reflect the official policy or position of the Uniformed Services University of the Health Sciences or the Department of War.Nature: The surprising science behind red-light therapy — and how it really works10:52 Research HighlightsNature: Trafficked pangolins can be traced to their source by DNA — even to a specific forestNature: A wispy wrapper for a chilly, Pluto-like world13:11 The complex story of global obesity ratesResearch article: NCD Risk Factor CollaborationSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.Audio long read: The air is full of DNA — here’s what scientists are using it for
19:06|Although scientists have long been able to gather DNA from water and soil, it's only recently that they've started to see the air as a source of genetic information.Airborne DNA is already being used to monitor individual species, but researchers hope its abundance could have multiple uses, including judging the success of conservation efforts or attacks with biological weapons.However, there remains much to understand, such as how far DNA travels in the air, and the ethics involved in the potential identification of a person's genetic information.This is an audio version of our Feature: The air is full of DNA — here’s what scientists are using it for
Briefing Chat: Can't focus? It's not your attention span, it's your notifications
10:53|00:31 The science of attention spansNature Feature: Are attention spans really shrinking? What the science says04:54 Data centres in space?Nature News Explainer: AI data hubs in space: when will they take flight?Nature Comment: Space diplomacy: bridging the operating gaps between myriad missionsSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.Anaesthetized brains can still process podcasts
15:00|In this episode:00:42 Probing the unconscious brain’s processing abilityResearch Article: Katlowitz et al.Nature: Even the unconscious brain can learn — and predict what you’ll say next12:32 Research HighlightsNature: An electrifying test to find a good coffeeNature: Forest pests hit trees hard as temperatures rise