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Meet the ‘Wee-rex’. Tiny tyrannosaur is its own species
A hotly debated species of dinosaur, assumed by many to be a juvenile T. rex, is actually a separate species, according to new research. Nanotyrannus was a dinosaur anatomically similar to T. rex, but about a tenth of the size, leading many to argue it was a young version of the iconic species. However, examination of the limb bones of a well-preserved Nanotyrannus fossil suggests it was close to finishing its growth and so would never become as large as a T. rex, leading the authors to argue that it is, in fact, a different species.
Research Article: Zanno and Napoli
News and Views: T. rex debate settled: contested fossils are smaller rival species, not juveniles
News: ‘Teenage T. rex’ fossil is actually a different species
Video: Hotly debated dinosaur is not a tiny T. rex after all
An artificial ‘neuron’ could pave the way to build a brain-inspired computer — plus, how bats buck the trend by hunting prey their own size.
Research Highlight: Artificial brains with less drain
Research Highlight: By the time you hear these bats, it’s too late
An ‘anti-hormone’ therapy has shown promise in halting the onset of hallmarks associated with breast cancer, in a small trial. Breast cancer is a leading cause of death in women worldwide, but preventative measures, such as mastectomies, are invasive. A new study examined the efficacy of a treatment that blocks progesterone, a hormone thought to play an important role in breast cancer progression. The therapy reduced both specific clinical markers of breast cancer and the number of cells that can become cancerous. Larger, longer trials are needed to show that this treatment could ultimately become part of a breast cancer prevention strategy, but the team think that this work shows the promise of this approach.
Research Article: Simões et al.
A new approach to speed up CRIPSR therapies reaching clinical trials, and how vocal cords could be healed using a tiny 3D printer.
Nature: Personalized gene editing helped one baby: can it be rolled out widely?
Nature: World’s smallest 3D bioprinter could rebuild tissue during surgery
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Briefing Chat: What tickling a chimpanzee can tell us about the evolution of speech
11:30|Nature staff discuss how apes share a rhythm of laughter, and how AI use may degrade skills in medicine and computer science.00:32 Early evidence suggests that AI use causes skills to atrophyNature: Is AI ruining our skills? Early results are in — and they’re not good06:42 Humans and chimps share a laughNature: Oo oo, ha ha: why humans and great apes giggle alike when tickledSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.
Medical records could be revealed by AI training-data vulnerability
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Briefing Chat: Testosterone and sperm may get a boost from obesity drugs
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DNA from hunter-gatherer teeth reveals secrets of ancient plague
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Briefing Chat: The epic journey of Stonehenge’s central stone
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Newly-discovered whale graveyard dates back millions of years
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Briefing chat: Spinosaurs with salt glands could have lived in marine environments
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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
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