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Phys.org / Lost megalodon vertebrae resurface, confirming 80-foot size estimate

An associated set of gigantic vertebrae belonging to the iconic extinct megalodon, or megatooth shark, that had been missing in action since the 1980s was discovered, providing new information about the shark's lifestyle. ...

7 hours ago
Phys.org / The order of species loss alters how grasslands maintain stability, study finds

Grasslands account for roughly 40% of terrestrial ecosystems and are paramount to global food security. Wild grasslands provide food for livestock and habitat for pollinators and act as a carbon sink in the era of climate ...

3 hours ago
Medical Xpress / Survey finds 3 in 10 young adults don't have a doctor; if they do, most don't see them

A new survey commissioned by The Ohio State University Wexner Medical Center finds young adults are missing out on the health benefits of having a primary care doctor.

3 hours ago
Medical Xpress / Enlisting pharmacists and nurse practitioners in medication management can fill critical gaps

A novel economic model projects that patients with heart failure would live longer and spend less time in the hospital by expanding heart failure care to include pharmacist- and nurse practitioner-led medication management. ...

3 hours ago
Phys.org / Reanalysis suggests 'Phoebe' is a variable star, not a primordial black hole

A new study debunks a recent claim that astronomers may have detected a lunar-mass primordial black hole. In a reanalysis of observations from the Dark Energy Camera (DECam), researchers found that the star nicknamed "Phoebe" ...

13 hours ago
Medical Xpress / Fatal rabies case with no visible wound shows why bat contact alone should trigger immediate vaccination, experts say

Ontario's first fatal rabies case since 1967 provides critical guidance to help prevent deaths from rabies in future cases. The article was published in the Canadian Medical Association Journal.

3 hours ago
Phys.org / Shining blue light on gold-graphene nanodots achieves wound healing trifecta

Closing wounds, burns and deep cuts isn't enough to kick-start healing. A wound needs a clean environment, free of bacterial infection and interruption. That calls for three components working together—one to kill bacteria, ...

15 hours ago
Phys.org / Human activity has driven retreat of Antarctica's fastest melting glacier

Human-driven climate change significantly intensified the retreat of one of the most important glaciers in Antarctica during the 20th century. The Pine Island Glacier, which drains a large part of the West Antarctic Ice Sheet ...

8 hours ago
Phys.org / Off-center stellar death points to wandering supermassive black hole stripped of its own galaxy

Astronomers have uncovered new details about the black hole that ripped apart a star in a tidal disruption event named AT2024tvd. Findings suggest it is a wandering supermassive black hole—the kind that is not located at ...

18 hours ago
Phys.org / Injectable silk-kudzu hydrogel achieves complete wound closure in laboratory tests

Researchers at the Terasaki Institute for Biomedical Innovation have developed an injectable hydrogel, a water-based gel material, made from silk proteins and a plant-derived compound. In laboratory tests, the material promoted ...

12 hours ago
Medical Xpress / Hospital discharge sedatives linked to more falls, readmissions and deaths in older adults

Older adults discharged from hospital with a new prescription for a sedative, especially a benzodiazepine or antipsychotic, are at increased risk of falls and other negative consequences, according to new research published ...

3 hours ago
Medical Xpress / Neural pathways reveal a push-pull system for coordinating goal-directed behavior in mice

Most of the tasks that humans complete daily entail carefully coordinating movements and tracking progress made toward a desired goal. Past studies have highlighted the role of the basal ganglia (BG), a set of interconnected ...

18 hours ago