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  • 科学美国人60秒 SSS 先思后”言”

    Right Whales Seem To Think Before They Speak As animals grow, the sounds they make change. But some sounds continue to change, even after an animal matures. That's true for humans, and now it turns out to be true for North Atlantic right whales, too....

  • 科学美国人60秒 SSS 提高光合作用能使作物增加产量

    Rev Up Photosynthesis To Boost Crop Yields 提高光合作用能使作物增加产量 Photosynthesis is surprisingly inefficient, only of the order of one to two percent. And one of the main culprits is an enzyme called RuBisCo. 光合作用效率低得...

  • 科学美国人60秒 SSS 数学会破解指关节开裂声音的奥秘

    Math Cracks a Knuckle-Cracking Mystery Knuckles cracking. You may not mind the sound. You may despise it. Or you could study it. 指节开裂。你可能没有注意到它的声音。 你可能会鄙视它。 再或者你可以研究它。 Couple yea...

  • 科学美国人60秒 SSS 通过腐肉可洞察石化过程

    Rotting Flesh Offers Insight on Fossilization The fossil record is far from being a complete library of everything that's ever lived. 化石记录不止是曾经存活生物的藏书阁. The vast, vast majority of everything that's ever lived has com...

  • 科学美国人60秒 SSS 有着天才个性的乌鸦

    Ravens Crow with Individual Flair There's a well-known conspiracy of ravensthat's what you call a group of ravensthat likes to hang out near a zoo in the Austrian Alps. Every day these ravens conspire to steal the food that's set out for the wild boa...

  • 科学美国人60秒 SSS 寒潮塑造蜥蜴幸存者

    Cold Snap Shapes Lizard Survivors In January 2014, an epic cold wave swept across the southeasta snowpocalypse so severe that thousands of drivers in Atlanta abandoned their cars on icy highways and Interstates. 在2014年1月,一场被称为末日暴...

  • 科学美国人60秒 SSS 路易丝斯劳特是国会食品安全领导者

    Louise Slaughter Was Congress's Food Safety Champion 路易丝斯劳特是国会食品安全领导者 Legislation to restrict the current overuse, I would say abuse, of antibiotics by farmers who raise livestock for human consumption.Louise Slaughter...

  • 科学美国人60秒 SSS 心情很重要哦~

    Bouncy Gait Improves Mood 心情很重要哦~ A good mood may put a spring in your step. But the opposite can work too: purposefully putting a spring in your step can improve your mood. Thats the finding from a study in the Journal of Behavior Therap...

  • 科学美国人60秒 SSS 北极热浪与雪风暴有关

    Arctic Heat Waves Linked to Snowpocalypse-Like Storms February was unusually hot in the arctic. Thawing out temperature: 35 degrees Fahrenheit.It made big news when it got to 35, I don't know if that's t-shirt weather yet, but 北极在二月时异常炎...

  • 科学美国人60秒 SSS 无人机的生物用途

    Drones Could Help Biologists Tally Birds Ecologists crouching quietly amidst vegetation, using binoculars to tally birds in a roost, may soon be a charming relic of the past. Because a new study shows that, when it comes to getting an accurate avian...

  • 科学美国人60秒 SSS 多活多遭罪?!

    Life Extension May Add Just Bad Time Living longer doesnt necessarily mean living better. Thats the lesson from the tiny roundworm called C. elegans, long a workhorse in basic biology lab work. The research is in the Proceedings of the National Acade...

  • 科学美国人60秒 SSS 唾液蛋白可能抑制肠道无序状态

    Saliva Protein Might Inhibit Intestinal Anarchy 唾液蛋白可能抑制肠道无序状态 Every day, you produce one to two liters of spit. It kick-starts digestion and helps you swallow. And it helps prevent bacterial infection in your mouth. 每天,...

  • 科学美国人60秒 SSS 寻找天外之山

    Searching the Heavens for Mountains In the last few decades, astronomers have discovered thousands of exoplanets orbiting other stars. Now, scientists want to know what they look like. Do they have oceans? Atmospheres? Researchers have even searched...

  • 科学美国人60秒 SSS 萌宠猫咪

    Psychologist Saho Takagi, a graduate student at Kyoto University in Japan, strolls into one of Japan's many cat cafes. These establishments allow customers to pay an hourly fee for the chance to cuddle some cats. They're popular in Japan because so m...

  • 科学美国人60秒 SSS 人类回声器原理类似蝙蝠回声

    Human Echolocators Use Tricks Similar to Bats Many bats use a system similar to sonar to navigate in the dark. They send out high frequency sound, sometimes as clicks, and get information about their surroundings by the timing and quality of the soun...

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