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At the time of the Big Bang, 13.8 billion years ago, every particle of matter is thought to have been produced together with an antimatter equivalent of opposite electrical charge. But in the present-...
To save caterpillars, turn off your porch light.
Nearly 20 years ago, scientists developed ways to stimulate or silence neurons by shining light on them. This technique, known as optogenetics, allows researchers to discover the functions of specific...
What a long, strange trip it’s been for psychedelic drugs. From their use in ancient indigenous ceremonies, to their often-caricatured association with the 1960s counterculture, to their recent reemer...
Why do woodpeckers peck? New discovery about bird brains sheds light on intriguing question（图）
鸟类大脑 交际鼓声 动物行为学
2023/6/26
A team led by a Brown biologist discovered that the same specialized brain area that helps songbirds learn their songs also exists in woodpeckers, suggesting that the communicative drumming evolved in...
Cramming multiple pairs of shoes into a vacation suitcase, twisting and flipping them into different arrangements to fit every pair needed, is a familiar optimization problem faced by harried traveler...
Through his close relationship with the woods of Walden Pond in Concord, Massachusetts, Henry David Thoreau observed the ebb and flow of the natural world first-hand. Prolific in his practice of colle...
It looks like fireflies flickering in the darkness. Slowly, more and more amass, lighting up the screen in large chunks and clusters.
Cut off the head of a three-banded panther worm, and it will grow another — mouth, brain, and all. Cut off its tail, and the same thing happens. Cut it in three pieces, and within eight weeks there’ll...
What seemed a cosmic trickle almost a decade ago now appears as a rapid-fire barrage from across the universe.
Scientists shed new light on role of viruses in coral bleaching（图）
new light role viruses coral bleaching
2020/10/23
Scientists at Oregon State University have shown that viral infection is sometimes involved in coral bleaching -- the breakdown of the symbiotic relationship between corals and the algae the...
New view of nature's oldest light adds fresh twist to debate over universe's age（图）
New view nature oldest light adds fresh twist debate over universe's age
2020/7/31
From a mountain high in Chile's Atacama Desert, astronomers at the U.S. National Science Foundation's Atacama Cosmology Telescope (ACT) have taken a fresh look at the oldest light in th...
Desert algae shed light on desiccation tolerance in green plants（图）
Desert algae shed light desiccation tolerance green plants
2020/7/10
Deserts of the U.S. Southwest are hot and dry -- extreme habitats for most plants -- but, remarkably, microscopic green algae that live there are extraordinarily tolerant of dehydration.These tiny gre...
Light-activated 'CRISPR' enables fast, precise gene editing and detection of DNA repair（图）
Light-activated CRISPR enables fast precise gene editing detection DNA repair
2020/7/3
In a series of experiments co-funded by the National Science Foundation, scientists at Johns Hopkins have used light as a trigger to make quick, precise cuts in the genomic material of ...
Scientists are refining our understanding of how light wavelengths affect the way plants develop their chloroplasts.Chloroplasts are the "engines" of plants. They use light from the sun and carbon dio...