科学美国人60秒 SSS Color-Changing Skin Aids Climate Control and Communication

Various animals evolved coloration that keeps them hidden. A jaguar's patterns help it slink undetected across the sun-dappled rainforest floor. The mottled pigmentation on the wings of some let them rest on tree bark undisturbed. And then there are

科学美国人60秒 SSS Pesticides Act as Honeybee Contraceptives

Over the last year, beekeepers in the U.S. lost nearly half their honeybee hives. And there are a lot of suspected culprits for this so-called beepocalypsefrom parasitic mites, to viruses, to simple land use changes. But a study out earlier this year

科学美国人60秒 SSS Humans and Birds Cooperate to Share Beehive Bounty

This is a story about the birds and the bees. When the Yao people of Mozambique want to find beehives full of honey they make this noise [brrrr-hm]. That sound attracts the attention of what are appropriately called honeyguide birds. If you ask Yao h

科学美国人60秒 SSS This Shark Is the Vertebrate Methuselah

By human standards, a few vertebrate species have incredible longevity. Some tortoises live for nearly 200 years. Bowhead whales can live even a decade or two longer. But now theres a new champion: the Greenland sharkwhich conservative estimates have

科学美国人60秒 SSS 2016-8-11

The Explorers Club in New York Citywhose members have included Neil Armstrong, Teddy Roosevelt, and the first men to reach both the North and South poleshas a reputation for serving exotic entrees, like fried tarantula and goats eyeballs. In 1951 the

科学美国人60秒 SSS 2016-8-05

Mars is a planet of outsized splendor. Despite being only half as big and a tenth as heavy as Earth, it bears the solar systems tallest mountain, longest canyon and largest crater. At 22 and 12 kilometers wide, however, its inner moon Phobos and oute

科学美国人60秒 SSS 2016-8-06

Watch your tonebecause it turns out it really isnt what you sayit's how you say it. At least when it comes to couples in couples counseling. 注意你的语气，事实证明你说什么不重要，而是在于你怎么说。至少在心理咨询时涉

科学美国人60秒 SSS 2016-8-07

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 2016-8-08

Public lands in the U.S. are managed with two goals in mind: protecting biodiversity and providing people with recreational opportunities, a chance to connect with nature. But sometimes those two goals are at oddsespecially if recreation, activities

科学美国人60秒 SSS 2016-8-09

So what does rafting down the Grand Canyon have to do with science education? 那么大峡谷漂流而下与科学教育有什么关系呢？ Ann Reid, former research biologist and current executive director of the National Center for Science Educat

科学美国人60秒 SSS 2016-8-10

Half of all fish people eat worldwide now come from fish farms. So farms need to do more to keep up with demand. 现在全世界一半供人类食用的鱼来自养鱼场。因此，养鱼场需要采取更多办法以满足需求。 If we look to th

科学美国人60秒 SSS 2016-8-12

Walk through Times Squareyou're bombarded with advertising. And it turns out, a bumblebee might have a similar feeling, buzzing through a field of flowers. So these flowers are these billboards, they're advertising a good, this delicious nectar rewar

科学美国人60秒 SSS 2016-8-13

If you've gone shopping for a car lately, you might have noticed that fuel economythe number of miles per gallonis creeping up. One reason is a more efficient type of fuel injection, called gas direct injection. Its a feature of half the new cars sol

科学美国人60秒 SSS 2016-8-14

A recent headline on the Web site theverge.com got a lot of attention on social media. Because each new phrase seemed to take the message in an unexpected direction. The headline read: U.S. government plans to use drones to fire vaccine-laced MMs nea

科学美国人60秒 SSS 2016-8-15

In Africa's battle against malaria, two low-tech tacticsinsecticides and bed netshave done a decent job killing off mosquitoes. But it's mainly one species that's been affected. That's a species called Anopheles gambiae, sometimes called the African

科学美国人60秒 SSS 2016-8-02

Weve all heard the adage: monkey see, monkey do. But it is literally trueif a monkey sees you looking at something, it will look, too. Now, a study shows that this tendency for a monkey to track what another is looking at is age-dependent. And in a v

科学美国人60秒 SSS 2016-8-03

When it comes to wine, the concept of terroir is sort of a nebulous thing. Terroir is sometimes translated as the wines character. Here's how my friend Valerie, a wine importer, explained it: I would say terroir is a specific set of natural elements

科学美国人60秒 SSS 2016-8-04

It may not be the most melodious bit of birdsong youll ever encounter. [Titmouse alarm call]. But this particular call, issued by a tufted titmouse, conveys important information about the presence of potential predators. But only if other birds can

科学美国人60秒 SSS 2016-8-01

疲劳驾驶每年导致6400名美国人死亡 It's particularly concerning that 56 million Americans a month admit that they drive when they haven't gotten enough sleep and they are exhausted.Charles Czeisler. Hes the director of the Division of Sle

科学美国人60秒 SSS Orangutan Picks Cocktail by Seeing Ingredients

Imagine you had never tasted lemonade. You would still probably assume that lemon juice mixed with sugar tastes better than lemon juice alone. Because you know what lemons taste like, and you know what sugar tastes like. You can recall those past exp