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Phys.org / Mammal ancestors laid eggs—and this 250-million-year-old fossil proves it
A remarkable new discovery is shedding light on one of the greatest survival stories in Earth's history, and answering a decades-old scientific mystery. Lystrosaurus, a hardy, plant-eating mammal ancestor, rose to prominence ...
Phys.org / Lost seal of Edward the Confessor resurfaces after going missing for 40 years
An 11th-century Anglo-Saxon seal belonging to Edward the Confessor has been rediscovered more than 40 years after being declared lost. The wax impression of the "Saint-Denis seal" disappeared without official explanation ...
Phys.org / Island songbirds may have their own music and culture
Whether it is the climate, beaches, or simply being away from the hustle and bustle, island cultures around the world often do things differently to the mainland. It turns out this phenomenon isn't unique to humans.
Medical Xpress / Rett syndrome study highlights potential for personalized treatments
Though many studies approach the developmental disorder Rett syndrome as a single condition arising from general loss of function in the gene MECP2, a new study by neuroscientists at The Picower Institute for Learning and ...
Medical Xpress / Over 80% of women face menopause symptoms—so why are workplaces still ignoring it?
Menopause has long been treated as something private, but the silence surrounding it is increasingly at odds with demographic reality. Women over 50 are the fastest-growing group in the workforce in many countries, and most ...
Phys.org / No great equalizer: Young laborers were hit hardest by early modern plague
A multidisciplinary archaeological team has examined plague burials from a 17th-century monastery turned hospital in Basel, Switzerland, shedding light on how social status impacted plague mortality in Early Modern Europe. ...
Medical Xpress / Why bowel movements start: Newly identified ATP signaling may explain the colon's strongest contractions
Giant migrating contractions (GMCs) are powerful waves of colonic movement that propel intestinal contents toward the anus and are essential for defecation. Yet despite their physiological importance, the mechanisms that ...
Tech Xplore / AI's big productivity boost? It's happening from the sofa
A new study by SIEPR's Michael Blank is among the first to examine an overlooked effect of generative AI: it's significantly boosting how much people get done at home. Barely a day goes by when there isn't a story about generative ...
Phys.org / A built-in 'hairpin' mechanism in CRISPR-Cas13 prevents rogue RNAs
The CRISPR-Cas gene-editing system has long been the focus of research as a promising tool in genome editing. However, the emphasis has been on its underlying mechanisms and nucleases. In contrast, little research has examined ...
Medical Xpress / As syphilis cases rise, study links infection with higher risk of stroke, heart attack and other serious problems
Syphilis has been rising sharply in the United States, with especially high rates in Southern states. Now, a new study from Tulane University researchers suggests the long-term infection may carry another risk that is often ...
Phys.org / Whales go quiet during noisy underwater surveys
A new study has shown that whale calls are reduced by as much as 50% in response to seismic surveys, which are commonly used to find oil and gas reserves. Researchers are worried that such surveys could impact vulnerable ...
Phys.org / Some lake bacteria survive by slashing half their genome and never looking back
Researchers at the University of Zurich have analyzed the genome of bacteria living in Lake Zurich to conclude that microbes employ two different strategies to colonize new habitats. Some acquire new traits, as expected—but ...
