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Racist ratings linger in five-star systems — a thumbs up could fix that
A study of almost 70,000 ratings showed that racial discrimination could be eliminated from an online platform by switching from a five-star rating system to a thumbs up or down. The platform connected customers to workers who performed home repair jobs, and prior to the shift people categorised by the study authors as ‘non-white’ had lower ratings and got paid less than their white counterparts. Through follow up studies the authors also showed that the five-star system allowed people to impart their personal opinions, whereas a thumbs up or down just focused them on whether a job was good or bad. The team hopes this could be an easy-to-implement shift to tackle racial discrimination.
Research Article: Botelho et al.
News and Views: Racial bias eliminated when ratings switch from five stars to thumbs up or down
Experimental evidence that cockatoos like flavouring their food, and the harsh climate of sixteenth century Transylvania.
Research Highlight: Gourmet cockatoos like to fancy up their food
Research Highlight: Transylvanian diaries reveal centuries-old climate extremes
A Nature investigation has revealed where the most retractions come from, with hospitals in China and institutions in India and Pakistan topping the list. Retractions are a normal part of science and may be a sign of necessary scrutiny, but they can also signal misconduct and use of paper mills. Features Editor Richard Van Noorden joins us to discuss what this means for science and tackling sloppy research.
Nature: Exclusive: These universities have the most retracted scientific articles
Layoffs in the US’s Environmental Protection Agency, reactions to the DEI purge at NASA, and what RFK Jr.’s role as secretary of Health and Human Services could mean for health research.
Nature: ‘Targeted and belittled’: scientists at US environmental agency speak out as layoffs begin
Nature: NASA embraced diversity. Trump’s DEI purge is hitting space scientists hard
Nature: Vaccine sceptic RFK Jr is now a powerful force in US science: what will he do?
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12:16|Nature staff discuss preliminary data on the effects of GLP-1 drugs on male fertility plus a two-year trial of a brain-computer interface.00:18 Brain-computer interface makes a life-changing impactNature: At-home brain implant gives man with motor neuron disease his daily life back05:39 The possible benefits of obesity drugs on testosteroneNature: The latest benefit of obesity drugs: boosting testosterone and sperm qualitySubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
DNA from hunter-gatherer teeth reveals secrets of ancient plague
26:42|In this episode:00:45 Ancient evidence of deadly plague outbreaksResearch article: Macleod et al.12:33 Research HighlightsNature: Bones of Iron Age skeleton were whittled into toolsNature: Giant crustacean of the deep sea steals a trick from bacteria14:52 A prototype atom interferometerResearch article: Baynham 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: The epic journey of Stonehenge’s central stone
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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
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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
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