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Phys.org / Gender gap in predicted grades raises questions over their use in university admissions

A study of more than 350,000 students in England has found that teachers predict higher A-Level grades for girls than boys who go on to achieve the same exam results. The findings raise fresh questions about the role of predicted ...

Jul 27, 2026
Phys.org / Orcas filmed ramming one of the world's heaviest fish so hard it explodes, possibly for fun

Orcas are known to be smart and ruthless hunters. They've been observed hunting a variety of prey, with some species, such as whales, larger than themselves. They use a wide range of strategies to hunt and kill prey, but ...

Jul 23, 2026
Phys.org / The surprising physics hiding in a single handful of beach sand

Sand has a way of getting everywhere on a beach day—and for some, it can make or break the whole trip. There's the way it whips through the air just as sandwiches are being unwrapped, the way it turns blisteringly hot underfoot ...

Jul 27, 2026
Phys.org / 'Grumpy' Pallas kittens on display at Japan zoo

Five young Pallas's cats—dubbed the world's grumpiest felines for their sullen facial expressions—went on display at a zoo in Japan on Thursday.

Jul 27, 2026
Medical Xpress / Gum disease worsens systemic bone loss in osteoporosis patients via gut bacteria

Chronic gum disease (periodontitis) may worsen bone deterioration in people with osteoporosis by disrupting the microorganisms that support gut health, according to collaborative research between Griffith University and Nanjing ...

Jul 27, 2026
Medical Xpress / Teens who struggle to log off social media could face increased ADHD symptoms over time

Social media has become as much a part of our daily lives as eating or sleeping. What started as a way for people to connect and share pictures has grown into a billion-dollar industry that shapes medical, political, and ...

Jul 25, 2026
Phys.org / Rethinking how we protect the world's mountain communities

As melting glaciers and shifting climates push mountain ecosystems to the brink, an international team of researchers has outlined a radical new approach aimed at strengthening the resilience, inclusivity and sustainability ...

Jul 27, 2026
Medical Xpress / Is your diet driving up your cholesterol? That may depend on your genes

Can a low-carb diet cause your cholesterol to skyrocket? This question has vexed researchers and influencers alike as the popularity of low-carbohydrate diets has surged, yet the evidence has remained mixed. New research ...

Jul 27, 2026
Phys.org / Accepting free will doesn't exist could make us less hateful and ashamed

In his 2023 bestseller, Determined, neuroscientist Robert Sapolsky argued that the interaction of biology and environment leaves no room for free choice. Philosopher and neuroscientist Sam Harris puts the case more bluntly: ...

Jul 27, 2026
Medical Xpress / Treating hepatitis C in chimpanzees used in former medical experiments

As close relatives of humans, chimpanzees have sometimes been used in biomedical experiments. They were instrumental in the identification of the hepatitis C virus: The then-mysterious pathogen was artificially injected into ...

Jul 27, 2026
Science X / Inside 530-million-year-old embryos, scientists uncover rare time-lapse of early animal growth

Think of a small fossil as the equivalent of a homemade video of prehistoric life. Fossils formed when sea organisms began their great proliferation more than half a billion years ago rarely contained anything but tough structures. ...

Jul 25, 2026
Phys.org / Trace molecules emerge as chemical 'keystones' that steer life's communities

In nature, the rarest ingredient can be the one that holds everything together. In a new article published in Trends in Ecology & Evolution, Dr. Erika C. Freeman of the Leibniz Institute of Freshwater Ecology and Inland Fisheries ...

Jul 26, 2026