栏目广告位一 |
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科学美国人60秒:African Penguins Pulled into an Ecological Trap
Over millions of years, penguins have evolved a keen sense of where to find food. Once they’re old enough, they set off from the shores on which they hatched for the first ti
科学美国人2017-03-03 -
科学美国人60秒:Medical Marijuana Faces Fed's Catch-22
Medical marijuana is now available in 28 states. But a big obstacle to research on marijuana as medicine is that it’s listed by the federal government on what’s called
科学美国人2017-03-02 -
科学美国人60秒:Blood Cells Remember Your Mountain Vacation
Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up there—so strenuous activity can leave you dizzy, out of breath
科学美国人2017-02-28 -
科学美国人60秒:Fermented Foods Find Fervent Advocate
“There are sort of three main ways that our species has developed to break down foods, or process foods, in a primordial way. And that is by cooking, by fermenting foods and
科学美国人2017-02-24 -
科学美国人60秒:Vision Needed to Curb Nearsightedness Epidemic
“So we’re inside, we’re in fake lighting, we’re not spending as much time outside in the context in which our visual system evolved.”Amanda Melin, ass
科学美国人2017-02-23 -
科学美国人60秒:Guppy Groups Provide Friendly Protection against Foes
Humans aren't the only species that forms friendships. Lots of animals prefer to spend their time only with certain individuals.
科学美国人2017-02-22
"It's all very well showing that you do get soc -
科学美国人60秒:2 Words Trigger CDC to Stay Quiet
“CDC is afraid is afraid to fund firearms research.”
科学美国人2017-02-22
David Hemenway, professor of health policy at the Harvard T. H. Chan School of Public Health.
“Twenty years -
科学美国人60秒:Spaceflight Squishes Spacefarers' Brains
Time spent in zero G changes the body: Astronauts come home with bone loss and muscle weakness. But what happens in their heads? To find out, researchers examined MRI’s of as
科学美国人2017-02-21 -
科学美国人60秒:Two Words Trigger CDC To Stay Quiet
“CDC is afraid is afraid to fund firearms research.”
科学美国人2017-02-20
David Hemenway, professor of health policy at the Harvard T.H. Chan School of Public Health.
“Twenty years -
科学美国人60秒:The True "Bottom" of the Food Chain Is Plenty Polluted
The Mariana Trench is the deepest spot in the world’s oceans. Only three humans have ventured into the trench in submersibles. But plenty of our pollution has made the voyage
科学美国人2017-02-20 -
科学美国人60秒:Heat Sensor Has Snaky Sensitivity
One of the most exquisite heat sensors in the world—it’s not in some government lab. It's in the head of a snake. The pit viper, to be specific.
科学美国人2017-02-17
"They're incredibly -
科学美国人60秒:Housing Boom Busts Birds' Valentine's Day
Urban development is encroaching on forests in the Pacific Northwest. And it’s also ruining Valentine’s Day for some songbirds. Because urban growth is making it a chal
科学美国人2017-02-16 -
科学美国人60秒:Cool Coating Chills in Sunlight
You've probably seen pictures of Greek villages, where every house is painted bright white. The paint reflects the intense sunlight of the Mediterranean. And it works pretty well
科学美国人2017-02-15 -
科学美国人60秒:Partnered-Up Men More Attractive to Women
It turns out the best looking thing on a man may be a good-looking woman.
科学美国人2017-02-14
Researchers report that women find a man they see with an attractive woman more desirable than unattache -
科学美国人60秒:Gulf Dead Zone Makes for Shrimpier Shrimp
Every spring, the Mississippi River dumps tens of thousands of tons of nutrient runoff into the Gulf of Mexico. Add temperature, current and wind to that pollution, and you have th
科学美国人2017-02-10 -
科学美国人60秒:Frog Spit Behaves Like Bug-Catching Ketchup
You might think frogs catch insects ‘cause their tongues are sticky. "But why is the tongue sticky, and how does it actually adhere to these insects at these very high accele
科学美国人2017-02-09 -
科学美国人60秒:Super Bowl Snacks Need These Exercise Equivalents
Super Bowl Sunday is almost here and there’s one question on everyone’s mind: How can I tackle a plate of chicken wings without adding yardage to my end zone?
科学美国人2017-02-07
Well, Ch -
科学美国人60秒:The Arctic's Anti-Snowball Snowball Effect
Last Christmas, Santa Claus must have been loading his sleigh in a t-shirt and shorts. Temperatures at the North Pole crept up toward the freezing point when they should have been
科学美国人2017-02-06 -
科学美国人60秒:Widening the Suez Canal Ushers In Underwater Invaders
The Mediterranean Sea is home to some 17,000 native species. But it's also home to a growing number of non-native species: 756 at last count. 756 may not sound like a lot, compare
科学美国人2017-02-03 -
科学美国人60秒:Hawaiian Crows Ready for the Call of the Wild
Once upon a time, on the big island of Hawaii, it would not have been unusual to hear:
科学美国人2017-02-03
[wild Hawaiian crow call]
That’s the call of the Hawaiian crow. It’s is a crit -
科学美国人60秒:A Humble Fish with a Colorful Edge
Hundreds of millions of years ago a humble fish swam in the lakes and rivers of the supercontinent Gondwana. Eventually Gondwana broke apart, becoming the continents we know today.
科学美国人2017-02-03 -
科学美国人60秒:LSD's Long, Strange Trip Explained
LSD is one of the most potent hallucinogenic drugs—active at just around 100 micrograms…a miniscule amount. That fact has fascinated pharmacologists for decades. Namel
科学美国人2017-02-03 -
科学美国人60秒:Umbrellas Plus Sunscreen Best Bet to Beat Burns
Last time you hit the beach—and yeah, probably seems like a distant memory in the currently chilly parts of the world—did you pack sunscreen? A beach umbrella? Or both?
科学美国人2017-02-03 -
科学美国人60秒:Ants Use Celestial Cues to Travel in Reverse
Next time you need directions, maybe ask an ant. Because these clever little critters are such masters of navigation that some can find their way home… whether they’re
科学美国人2017-02-03 -
科学美国人60秒:High-Sugar Diet Makes Flies Drop Like...Flies
I don’t believe, in all my years, I have ever seen a fruit fly I would consider obese. But, thanks to the wonders of modern science, that’s all about to change. Because
科学美国人2017-01-25
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