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Earliest crafted bone tools date back 1.5 million years
A 1.5-million-year-old cache of animal-bone tools reveals that ancient humans systematically crafted with this material much earlier than previously thought. Researchers uncovered 27 bone artefacts in Tanzania honed into sharp tools almost 40 cm long. This discovery pushes back the dedicated manufacture of bone tools by around a million years and could have helped these early humans develop new kinds of technology. “This raises a lot of interesting questions,” says study author Ignacio de la Torre.
Research Article: de la Torre et al.
Cane toads’ remarkable homing abilities, and evidence that the block of rock that makes up southern Tibet originated in what is now Australia.
Research Highlight: Take me home, country toads
Research Highlight: Lhasa′s rocks reveal an Australian birthplace
To help protect against infection, cells in the body will selectively cut proteins to produce molecules known as antimicrobial peptides, according to new research. A team has found that many potential peptides appear to be locked up within proteins — to get them out, cells shift the activity of a waste-disposal system called the proteasome, known for its role in protein degradation and recycling. In tests, one of these peptides showed efficacy at protecting mice from infection, indicating that these molecules could one day have therapeutic potential.
Research Article: Goldberg et al.
News and Views: Protein waste turned into antibiotics as a defence strategy of human cells
An update on two missions heading to the Moon to look for water, and why fears that a crucial ocean-current system will collapse in the face of climate change may be incorrect.
Nature: Meet the ice-hunting robots headed for the Moon right now
Nature: Iconic ocean-current system is safe from climate collapse ― for now
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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
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Briefing Chat: Stressed mitochondria spawn new 'organelles' in cells
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Inside the evidence revolution — how decision-making became data driven
26:23|In this episode of Nature hits the books, we speak with Nature's Helen Pearson whose book Beyond Belief: How Evidence Shows What Really Works looks at the history of using evidence, rather than opinion, in decision making.The book traces the course of the movement in various disciplines, such as the rise of evidence-based medicine in the 90s, looking at the rebels who led the charge, the barriers they faced, and why the use of evidence is crucial at a time when misinformation is rife.Beyond Belief: How Evidence Shows What Really Works Helen Pearson Princeton University Press (in the press)Music supplied by SPD/Triple Scoop Music/Getty ImagesMeet Ace, the table-tennis robot that can beat elite players
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Briefing Chat: Penguins pick up PFAS pollution
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