科学美国人60秒 SSS 老树是生态系统的黄金使者

Old Trees Are Ecosystem Gold Well, lots of people recognize that as humans get older they tend to have less and less children...trees do it the other way around.David Lindenmayer. He studies conservation, landscape ecology and biodiversity at the Aus

科学美国人60秒 SSS 蜜蜂喜欢花朵提供的尼古丁

Bees Prefer Flowers That Proffer Nicotine We humans enjoy coffee and tea, to give our brains a caffeine boost. And bees sometimes sip nectar that naturally contains caffeine, which seems to enhance their memory. Now a study suggests that bees enjoy a

科学美国人60秒 SSS 猫咪: 铲屎官不错哦

Your Cat Thinks You're Cool We tend to see housecats as aloof and independent, mostly preferring to engage in their own kitty business. But that assumption may be littered with error. Because a new study finds that, given a choice, Fluffy would proba

科学美国人60秒 SSS 蜘蛛狂吃海量的小獵物

Spiders Gobble Gargantuan Numbers of Tiny Prey By now, you may have heard about a study that came out a couple of weeks ago about spiders. The study got a lot of attention because coverage of the research often focused on the idea that spiders could

科学美国人60秒 SSS 新地图可识别噪音污染

New Map Knows Noise It's harder and harder to find peace and, especially, quiet. Just ask a field researcher deep in the wilderness. Even in the most remote parts of Alaska the sound of a jet crossing overhead is all too common. 寻求安宁越来越难

科学美国人60秒 SSS 大便移植者的关键要素

Fecal Transplanters Fish Out Key Ingredient These days, antibiotics are no silver bullet. In fact, if you get them in the hospital, you may end up with an additional infection. Like the bug Clostridium difficile, or C. diffwhich infects more than 300

科学美国人60秒 SSS 野生鸣禽能唱出新歌

Wild Songbirds Can Pick Up New Tunes Only a few kinds of animals are known to learn their vocalizations from listening to others. Us, of course. Elephants. Bats. Cetaceanswhales and dolphins. Pinnipedswalruses, seals and sea lions. And parrots, hummi

科学美国人60秒 SSS 日食对蜜蜂来说是灭顶之灾

Solar Eclipse Was Buzzkill for Bees Last summer's total solar eclipse sliced right through Columbia, Missouri. It was remarkable. As a biologist I generally reserve that word 'remarkable' for biological phenomena.Candace Galen is based at the Univers

科学美国人60秒 SSS 医疗保健让尼安德特人“超重”

Health Care Let Neandertals Punch above Their Weight Health care isn't just a benefit of the modern human age. It goes way back. All the way, even, to the Neandertals.We imagine they would have been cleaning wounds, dressing wounds. Penny Spikins, a

科学美国人60秒 SSS 理性社交

Tally up all your 'regular spots'places you visit on a weekly basis like restaurants, markets, parks. And what do you get? A new study says that most of us limit our hangouts to some 25 places.So every time we adopt a new place, we abandon another on

科学美国人60秒 SSS 章鱼吃了摇头丸会变得可爱

Asocial Octopuses Become Cuddly on MDMA When humans take the drug MDMAbest known as ecstasythey feel a deeper connection to othersemotionally and physically. Because MDMA affects serotonin, a nervous system chemical. Serotonin is one of the oldest ne

科学美国人60秒 SSS 诺贝尔经济学奖强调应对气候变化的必要性

Economics Nobel Highlights Climate Action Necessity The first thing is that people have to come to grips with the difficulties we face. I think the scientists have and many of the people have, but the governments have to.Yale Universitys William Nord

科学美国人60秒 SSS 在万圣节，考虑一下巧克力蚊

For Halloween, Consider the Chocolate Midge As you unwrap a Halloween candy or two, it's worth paying your respects to the real reason for many of the treats: a tiny fly whose trick is to make chocolate possible. They're all in the family Ceratopogon

科学美国人60秒 SSS 骨头和石头:墓地地质学

Bones and Stones: Cemetery Geology A tour of Woodlawn Cemetery in the Bronx, N.Y., focuses on the geology of the landscape and the mausoleums. 参观纽约布朗克斯区的伍德劳恩公墓，他的研究重点是当地的地质景观和陵墓。

科学美国人60秒 SSS 公路交叉口保护着迁徙的叉角羚和开车的人

Highway Crossings Protect Migrating Pronghorns--and Motorists Ever hear of the pronghorn antelope in the American west? Well, its not really an antelopeits actually more closely related to giraffes than to true antelopes. And the last known migration

科学美国人60秒 SSS 以毒制毒

Antifreeze Surface Fights Ice with Ice Every year, 20 million tons of salt are dumped on roads and highways across the U.S. to eliminate ice. And airlines spray up to 1,000 gallons of antifreeze on any one plane to de-ice it. But now scientists have

科学美国人60秒 SSS 鲨鱼

Sharks aren't typically thought of as vegetarians. Or even omnivores. But about 10 years ago, scientists documented a dainty relative of the hammerhead shark, known as a bonnethead shark, consuming copious amounts of seagrass. 锤头鲨通常不被认为

科学美国人60秒 SSS 海豚降低叫声以与船只的噪音竞争

Dolphins Dumb Down Calls to Compete with Ship Noise The oceans are getting louder. And coastal areas are some of the noisiest, as in this underwater recording, captured 17 miles off the coast of Ocean City, Maryland. 海洋的声音越来越大。在这

科学美国人60秒 SSS 放射可以帮助心脏恢复节奏

Radiation Might Help Heart Regain its Rhythm That beeping sound is the normal beating of a heart. But here's what the same heart sounds like, during a bout of ventricular tachycardia, or VT the racing beats are caused by an electrical short circuit i

科学美国人60秒 SSS 奇怪的太阳系

You Live In a Strange Solar System The more astronomers study the heavens, the more they realize: our solar system is weird.There are a few things that make the solar system kind of strange.Lauren Weiss, an astrophysicist at the University of Montrea