Sobre o artigo O nosso trabalho sobre é mortalidade de plantas durante a seca, focando nos mecanismos fisiológicos subjacentes e nos limiares que levam a mortalidade. Como estes limiares variam…
Category: Life
Central Genetic Switch Controls Long-Distance Axon Navigation
Summary: Challenging the dogma that growing axons navigate exclusively via local cues processed at their tips, neuroscientists have discovered that a centralized genetic switch inside the neuron’s cell body directs…
Brain Activity Predicts Risky Choices Half a Second Before They Are Made
Summary: By recording directly from electrodes implanted in the human orbitofrontal cortex, neuroscientists discovered two neighboring circuits locked in a millisecond-by-millisecond “tug-of-war” between taking a risk and playing it safe.…
Meet Swiftiephylus, an Australian bug named after Taylor Swift
If you’re down under and you give the right tree a rustle, you might encounter a record-breaking, globally recognized music icon. Or at least a bug named after her. Meet…
These deep-sea spiders give off an otherworldly glow
In the deep, dark Australian Abyss, what’s visible can be scarier than the unseen. There, giant sea spiders with glowing 25-centimeter-long legs may scuttle like disembodied apparitions. Photos of these…
Historical art can hide scientific secrets
In the upper right corner of his 1611 painting “Air,” Flemish artist Jan Brueghel the Elder drew a bat holding a songbird in its jaws. While the painting might have…
‘Jet fuel didn’t melt the steel’: 9/11 conspiracy theories debunked
Twenty-five years after the September 11 attacks, conspiracy theories about the World Trade Center’s collapse still circulate — but as Popular Mechanics reports in a piece revisiting its long-running fact-check…
Could a whale swallow a person whole?
In the movie Whalefall, a sperm whale accidentally swallows a scuba diver. It’s technically possible, but unlikely to play out in real life.
Facing ridicule, Hegseth rescinds Pentagon’s new testosterone mandates
The Pentagon abruptly yanked its new testosterone-screening rules just a day after posting them, as ABC News’ Luis Martinez reports. Defense Secretary Pete Hegseth had ordered mandatory “low-T” testing folded into…
Winter work shows it really pays to be a smart mountain chickadee
A mountain chickadee waking up in the Sierra Nevada range on a snowy morning has no time to dawdle. Weighing about as much as a pencil, it needs to find…
