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科学美国人60秒 SSS 金屋藏“娇”
How do you attract a mate? If youre a male mouse, you take the Frank Sinatra approachyou sing. Scientists have known about crooning male mice for years. And past experiments showed that if you leave male mice alone with an unconscious female or even
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科学美国人60秒 SSS 舌头之谜
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 accelerations? 也许你认为青蛙能捕食昆虫是由于舌头很粘的缘故。但
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科学美国人60秒 SSS 一条小鱼
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. And the descendants of that fish, now called cichlids, continue to sw
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科学美国人60秒 SSS 眼睛也要休息
So were inside, were in fake lighting, were not spending as much time outside in the context in which our visual system evolved. 在室内，处在人造光中，由于我们的视觉系统在发育，所以我们不能在光下呆太长的时间。
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科学美国人60秒 SSS “美食”共分享
Microbes play a huge role in our nutrition, our immunity, maybe even our mental health. But we arent the only ones that rely on these armies of resident bacteria. Baby cockroaches, the ones that just emerge from the egg, don't have any gut bacteria.
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科学美国人60秒 SSS 沐浴雨中 随风飘荡
Back in January, one of California's oldest and most iconic residents keeled over: the Pioneer Cabin tree, a giant sequoia in Calaveras Big Trees State Parkso big you used to be able to drive through it. 在今年一月份，加州一座最古老、最
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科学美国人60秒 SSS 肠道细菌：我们饱啦
This Thanksgiving, as you savor your turkey and stuffing, here's something else to give thanks for: the army of microbes that help you digest the feast. Because when you eat, you're feeding them tooand triggering an enormous bloom of gut bacteria. In
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科学美国人60秒 SSS 意外带来的不止是惊醒
Exposure to the unusual, the jarring, the culturally shocking may be beneficial for your cognitive reasoningand your waistline. 接触与众不同、不和谐文化方面的冲击可能会有益于认知推理甚至你的腰围。 Thats according to
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科学美国人60秒 SSS African Penguins Pulled into an Ecological Trap
Over millions of years, penguins have evolved a keen sense of where to find food. Once theyre old enough, they set off from the shores on which they hatched for the first time and swim long distances in search of tasty fish like anchovies and sardine
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科学美国人60秒 SSS Last Woollies Had Mammoth Mutations
In their heyday, woolly mammoths blanketed the Siberian steppe, Alaska and large parts of North America. But by 10,000 years ago, warming climates had turned many of the grasslands they grazed into forest. And humans, well they weren't so friendly ei
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科学美国人60秒 SSS Biggest Rivers Are Overhead
Back in January, one of California's oldest and most iconic residents keeled over: the Pioneer Cabin tree, a giant sequoia in Calaveras Big Trees State Parkso big you used to be able to drive through it. The giant was blown over by high windsdelivere
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科学美国人60秒 SSS How to Find Loooong Gravitational Waves
In 2016 the Laser Interferometer Gravitational-Wave Observatory, LIGO, made the first accepted detection of gravitational waves. So any time you move a mass it produces a gravitational waveso black holes, like the ones LIGO detected, these are stella
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科学美国人60秒 SSS Forensic Science: Trials with Errors
We have increasing doubts about this evidence, but we dont feel yet that we have the scientific knowledge and basis to exclude it altogether. Jed Rakoff, United States District Judge for the Southern District of New York. He spoke about forensic evid
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科学美国人60秒 SSS Teeth Hint at a Friendlier Neandertal
The paleo dietit's pretty trendy. Eat like a caveman, no dairy, grains, sugar and so on. But what you probably won't find on many paleo plates today? Pine nuts and moss and tree bark and mushrooms. Laura Weyrich, a paleomicrobiologist at the Universi
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科学美国人60秒 SSS Ants Use Celestial Cues to Travel in Reverse
Ants Use Celestial Cues to Travel in Reverse蚂蚁很厉害 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 theyre walking forward, backwar
