A large fossil leg bone hints at T. rex’s origins, but scientists disagree
A new analysis of a large fossil shinbone suggests T. rex ancestors came from North America instead of Asia. Not everyone …
Why African striped mice can be the best of dads — or the worst
Environmental cues can flip a molecular switch in the brain, turning males from caregivers to killers.Environmental cues can flip a…
AI may be giving teens bad nutrition advice
AI-generated meal plans for fictional teens cut an entire meal’s worth of calories and carbs while overemphasizing protein and fa…
AI auto-complete may subtly shape views on social issues
People are increasingly using AI auto-complete features when writing. Unbeknownst to them, that feature may change how they think.P…
A strange ‘chirp’ in a brilliant stellar blast points to a magnetar
Superluminous supernovas are the brightest stellar explosions in the universe. Astronomers may have found a mechanism that can trig…
Submerged bumblebee queens breathe underwater
Submerged bees breathe and use strategies that don’t require oxygen, lab tests show. In nature, that trick could help the bees su…
‘Smart underwear’ measures how often humans fart
“Zen digesters” rarely fart. “Hydrogen hyperproducers” fart a lot. Scientists are investigating what is typical.“Zen dige…
Tree tops sparkle with electricity during thunderstorms
Ultraviolet cameras captured faint electrical flashes from leaves and branches as storm charges built up in the atmosphere.Ultravio…
When the pressure’s off, this superconductor appears to break records
A sudden release of pressure allowed a copper-based compound to superconduct at the highest temperature yet for atmospheric pressur…
How does early pregnancy lower breast cancer risk? Odd cells could offer clues
Suspicious cells build up in mice that haven’t given birth, a new study finds. They could help explain a longstanding mystery of …