Share
Nature Podcast
The brain cells that help animals navigate in 3D
Researchers uncover how grid cells fire in a 3D space to help bats navigate, and a fabric that switches between being stiff and flexible.
In this episode:
00:47 Mapping a bat’s navigation neurons in 3D
Grid cells are neurons that regularly fire as an animal moves through space, creating a pattern of activity that aids navigation. But much of our understanding of how grid cells work has involved rats moving in a 2D plane. To figure out how the system works in a 3D space, researchers have mapped the brain activity of bats flying freely around a room.
Research Article: Ginosar et al.
07:44 Research Highlights
How a ‘toxin sponge’ may protect poison dart frogs from themselves, and the world’s oldest known coin foundry has been found.
Research Highlight: An absorbing tale: poison dart frogs might have a ‘toxin sponge’
Research Highlight: Found: the world’s oldest known mint and its jumbo product
09:59 A flexible fabric that transforms from soft to rigid (and back again)
Researchers have created a ‘tunable’ fabric, inspired by medieval chainmail, that when compressed changes from flexible to rigid. The stiffened structure can hold 30 times its own weight, and the team behind it suggest this material could be used to build temporary shelters or have medical applications.
Research article: Wang et al.
16:33 Stark warning from the IPCC’s latest report
This week the UN’s Intergovernmental Panel on Climate Change released its long awaited report detailing compiling the latest climate science data. Nature’s Jeff Tollefson joins us to discuss the report and the warnings it contains for our warming world.
News: IPCC climate report: Earth is warmer than it’s been in 125,000 years
More episodes
View all episodes
Newly-discovered whale graveyard dates back millions of years
21:38|In this episode:00:46 A giant, ancient whale necropolisResearch article: Peng et al.News & Views: A vast whale necropolis has been found08:52 Research HighlightsNature: Babies’ birth weight improves with help of payments to parentsNature: Earliest signs of vision recorded in ancient sea-floor tracks11:11 Turning plant material into chemical building-blocksResearch article: Mains 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: Spinosaurs with salt glands could have lived in marine environments
11:25|In this episode:00:23 Fossil evidence that spinosaurs had an aquatic lifestyleScience: Some spinosaurs cried salty tears to thrive in brackish waters04:57 The explosive immune cells that kill in minutesNature: Bang! Exploding immune cells splatter potent toxins everywhereSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.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