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听力文摘：灰蝶与蚂蚁双赢原则
The Lycaenids are a group of butterflies known commonly as blues, coppers and hairstreaks. Most species of Lycaenid butterflies have evolved close, mutually- beneficialrelationships with different species of ants. 灰蝴蝶是一群被认为有着蓝色
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听力文摘：探寻无糖可乐的奥秘
Heres an at-home experiment you can try. 你可以在家做这样的实验。 Take a can of classic Coca-Cola and a can of Diet Coke, and without opening either one submerge them in water. A deep sink or a bucket will do the trick. Youll find the can
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听力文摘：记忆力专家,挖坑存粮食
Humans may be one of the smartest animals on the planet, but when it comes to remembering where things are, Clarks nutcrackers have us beat. 人类也许是世界上最聪明的动物之一，但说到记忆，克拉克（新泽西州）的星鸟比我
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听力文摘：粉刺的奥秘
Acne: the scourge of adolescence. Most people endure it at some point, and cant wait to be rid of the combination of whiteheads, blackheads, pimples, and pustules that comprise the skin condition that affects over 80% of teenagers and nearly 20% of a
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听力文摘：外星球上有生命吗
Well, we've all been hearing about ongoing Mars exploration, and how water probably used to be abundant there. And a water spewing volcano was recently discovered on a small moon orbiting Saturn. Water is one sign that life may exist or have existed
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听力文摘：我们只用了大脑的10%吗
Have you ever heard that we humans use only ten percent of our brains? This oft-quoted myth holds a certain appeal because if it were true, then we could instantly become ten times more intelligent just by firing up that sleepy majority of the brain!
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听力文摘：香菜, 该爱他还是恨他
On todays Moment of Science, well be sniffing our way through a controversial culinary conundrum: the great cilantro debate. 今天的《科学一刻》栏目，我们将来探讨一个有争议性的烹饪难题：关于香菜的大辩论。 Accordi
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听力文摘：神奇的电子墨水
If you thought erasable ink was cool, wait until you hear about todays topic on A Moment of Science: electronic ink. 如果你觉得可擦墨水很酷的话，那就等你听完今天所讲的这个话题---电子墨水后再下结论吧。 To begin
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听力文摘：哭的时候为什么会流鼻涕
When you burst out crying, you expect the bleary red eyes and the rivers of tears that stream down your cheeks. But on top of all that, your nose starts to run like a faucet. Why does this happen? Whats the connection between crying and a runny nose?
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听力文摘：揭秘车后窗玻璃上的雨滴形状
The next time you're driving during a rain shower, glance back at the rear window. You'll notice that while raindrops batter the front windshield, they seem to avoid the back window as long as the car is moving. How is that possible? 下一次下阵雨
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听力文摘：大熊可称是落基山脉的旋耕机
Today's Moment of Science digs up the story behind one of the grizzly bear's more unusual nicknames: the Rototiller of the Rockies. 今天科学一刻将会深入挖掘灰熊的一个不同寻常的绰号背后的故事，这个绰号就是落基山脉
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听力文摘：乘坐飞机耳朵痛的原因
On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may make adults' ears feel a little funny, prompting a few yawns to equalize the pressure. But for babies
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听力文摘：鱼儿平时喝水吗
Water gets into a fish's body through osmosis, the process in which water diffuses from a higher to a lower concentration. 水通过渗透作用进入鱼儿的身体，在这一过程中，水从高浓度的地方扩散至低浓度的地方。 For ex
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听力文摘：冰河世纪动物如何生存
During the last ice age, rapid swings in temperature occurred within decades or less, meaning populations of organisms had to adjust quickly to new environments or face extinction. 在最后一个冰河世纪中，温度在数十年甚至更短的时间
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听力文摘：闲谈什么是电梯效应
Today's program is about an effect that not only have we all witnessed, but have participated in. Haven't we all been on an elevator and noticed that just about everyone stops talking when they get on? Why do we do that? You can be having a perfectly
