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How humans adapted to digest lactose — after thousands of years of milk drinking
Humans have been drinking milk for thousands of years, but it seems that they were doing so long before the ability to digest it became prevalent. Then around 2000 years ago, this ability became common in Europe, presenting a mystery to researchers – why then? Now by analyzing health data, ancient DNA, and fats residues from thousands of ancient pots, scientists have worked out what caused this trait to suddenly spread throughout Europe.
Research Article: Evershed et al.
News and Views: The mystery of early milk consumption in Europe
08:56 Research Highlights
How genes stolen from outside the animal kingdom have altered insects’ abilities, and a dormant black hole beyond the Milky Way gives insights into these objects' origins.
Research Highlight: Genes purloined from across the tree of life give insects a boost
Research Highlight: A quiet black hole whispers its origin story
11:21 Assessing the addiction potential for therapeutic ketamine
Ketamine has shown great promise as a fast-acting antidepressant, but there have been concerns about the risks of addiction relating to this therapeutic use. Now, a team have looked in mice to see whether ketamine causes the behavioural and neuronal changes characteristic of addictive substances. They find that ketamine likely has a low addiction risk, which could inform future prescribing decisions in humans.
Research article: Simmler et al.
News and Views: A short burst of reward curbs the addictiveness of ketamine
17:51 Briefing Chat
We discuss some highlights from the Nature Briefing. This time, a report shows a significant decline in Australia’s environment and ecosystems, and how adding a gene greatly increases rice yield.
The Conversation: This is Australia’s most important report on the environment’s deteriorating health. We present its grim findings
Science: Supercharged biotech rice yields 40% more grain
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Briefing Chat: Are scientists funny? The evidence is in — and it's no joke
09:52|In this episode:00:22 Exploring how gut microorganisms contribute to ageingNature: Memory loss is fuelled by gut microbes in ageing mice04:30 How good jokes are in short supply during academic conferencesNature: Knock knock, no one’s there. Study finds scientists’ jokes mostly fall flatSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
Botanical mystery solved: how plants make a crucial malaria drug
15:55|In this episode:00:46 Piecing together a biochemical puzzleResearch Article : Lombe et al.12:26 Research HighlightsNature: Electric-vehicle batteries toughen up to beat the heatNature: Live parrots were carried across the Andes before the Incas’ rise
Briefing chat: ‘Can it run Doom?’ — why scientists got brain cells and a satellite to play the classic game
10:34|00:26 Why researchers keep using Doom in their researchNature: How the classic computer game Doom became a tool for scienceSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.This fish shouldn’t exist — the weird genetics of clonal vertebrates
23:22|A study reveals how the asexual Amazon molly defies evolutionary expectations — plus, evidence of what may be powering superluminous supernovae.In this episode:00:46 Unravelling the genetics of an asexual fish that should be extinctResearch Article: Ricemeyer et al.News and Views: How an all-female fish species defies evolutionary expectations10:19 Research HighlightsNature: Jam-packed star system is most compact of its kind ever foundNature: Peanut-processing microbes ward off dangerous allergic shock11:31 How a superluminous supernova got so brightResearch Article : Farah et al.News and Views: Ultra-bright supernova wobbles like a spinning topSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday: https://www.nature.com/briefing/signup
Briefing chat: What Galileo’s scribbled margin notes reveal about his scientific journey
09:35|In this episode:00:25 How paediatricians’ antibodies could treat serious viral infectionsNew Scientist: Paediatricians’ blood used to make new treatments for RSV and colds04:22 Galileo’s annotations in an ancient textScience: Galileo’s handwritten notes found in ancient astronomy textSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.Heart surgery with quick-setting magnetic fluid could prevent strokes
18:12|Injectable fluid safely fills area in which blood clots can form, in animal trials — plus, strong evidence that an elusive form of diamond has been made in the lab.00:47 A magnetic seal to stop clots forming in the heartResearch Article : Wang et al.News and Views: Magnetic fluid offers better seal in heart-plugging medical procedureVideo: Magnetic gel injected into the heart could stop strokes07:02 Research HighlightsNature: Sewage systems secretly waft pollution into the airNature: This ant species is composed of only queens — no workers or males11:31 Making hexagonal diamondResearch Article: Lai et al.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.Audio long read: Many people have no mental imagery. What’s going on in their brains?
18:23|This is an audio version of our Feature: Many people have no mental imagery. What’s going on in their brains?
Briefing chat: Pokémon turns 30 — how Pikachu and pals inspired generations of researchers
11:05|In this episode:00:15 How Pokémon inspired fields as diverse as evolution, biodiversity and research integrityNature: Pokémon turns 30 — how the fictional pocket monsters shaped scienceSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.How earthquakes and lightning help explain squeaky sneakers
19:35|High-speed footage reveals shoe squeaks can start with a tiny bolt of lightning — plus, evidence that a debated brain phenomenon exists in humans.00:44 The science of squeaky shoesResearch Article : Djellouli et al.Basketball sound effects via Bradley Kanaris/Getty.09:05 Research HighlightsNature: Runaway black hole leaves a trail of starsNature: Super-sticky feet help a robot to climb the walls11:31 Evidence of hippocampal neurogenesisResearch Article: Disouky et al.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.