Uncategorized
- Archaeology
What did Homo sapiens eat 170,000 years ago? Roasted, supersized land snails
Charred shell bits at an African site reveal the earliest known evidence of snail-meal prep, suggesting ancient humans cooked and shared the mollusks.
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- Planetary Science
Planets without stars might have moons suitable for life
Thanks to gravitational squeezing by their host planets, some moons of rogue planets could stay warm for over a billion years, simulations suggest.
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Did artificial intelligence write this editor’s note?
Editor in chief Nancy Shute discusses the implications of artificial intelligence tools like ChatGPT for education, journalism and more.
- Health & Medicine
A new battery starves cancer cells of oxygen in mice
When a self-charging battery is placed on a mouse’s tumor and combined with anticancer drugs, it reduced tumor size by 90 percent.
- Life
Capybaras thrive, even near humans, because they’re not picky eaters
Scientists didn’t expect capybaras to eat both grasses and forest plants. The rodents’ flexible diet helps them live everywhere from cities to swamps.
- Health & Medicine
The antiviral drug Paxlovid reduces the risk of getting long COVID
In a study of U.S. veterans’ health records, the drug lowered the odds of developing 10 of 13 long-term health problems following a COVID-19 infection.
- Life
T. rex may have had lips like a modern lizard’s
Dinosaurs like Tyrannosaurus have long been portrayed as lipless, but new research suggests this wasn’t so.
- Anthropology
Native Americans corralled Spanish horses decades before Europeans arrived
Great Plains groups incorporated domestic horses into their cultures by the early 1600s, before Europeans moved north from Mexico.
- Neuroscience
Scientists triggered the flow of spinal fluid in the awake brain
If future studies confirm these waking waves wash away toxic proteins from the brain, the finding could lead to new treatments for brain disorders.
- Plants
Stressed plants make ultrasonic clicking noises
Tomato and tobacco plants emit high frequency sounds, which could one day find a use in agriculture, as a way to detect thirsty crops.
- Health & Medicine
50 years ago, air pollution was linked to more reports of animal bites
Scientists spent decades tying air pollution to health and behavior problems. Now, there’s more evidence that dirty air influences aggression in animals.
