2018-01-31 所属栏目:科学美国人

The giraffe is an icon of the African savannah. The lion is the top predator of the ecosystem. Both animals face uncertain futures, and both are subjects of intense, ongoing conser

2018-01-29 所属栏目:科学美国人

Yesterday, January 24th, 2018, at the World Economic Forum in Davos, Scientific American editor-in-chief Mariette DiChristina ran into Ben Feringa. He shared the 2016 Nobel Prize f

2018-01-26 所属栏目:科学美国人

Get a flu shot. It's already standard advice from your doctor. But it may be even more important for senior citizens at risk of heart attack.

Because a new analysis in The New En

2018-01-25 所属栏目:科学美国人

“Collaboration in science across the world is the key to a better world in the future. Doesn’t matter whether it’s drug resistance or climate change or social ine

2018-01-25 所属栏目:科学美国人

If you’ve ever checked out the restaurant reviews on Yelp, you know that these little missives can tell you whether a bistro is overpriced or understaffed or just nothing to

2018-01-24 所属栏目:科学美国人

“Over the last few decades, Canada geese have been wintering further and further north, which was interesting, because the winters have gotten a little more mild over the las

2018-01-23 所属栏目:科学美国人

On March 27th, 1964, a huge earthquake struck the Prince William Sound, off the coast of Alaska. <<CLIP: "Out in the gulf of Alaska, the ocean bottom plunges, then heaves upward a

2018-01-22 所属栏目:科学美国人

If you&rsquo;ve ever checked out the restaurant reviews on Yelp, you know that these little missives can tell you whether a bistro is overpriced or understaffed or just nothing to

2018-01-19 所属栏目:科学美国人

When Europeans arrived in the New World, they carried with them microscopic, deadly organisms&hellip; like smallpox, measles and flu&hellip; which caused devastating outbreaks amon

2018-01-18 所属栏目:科学美国人

To learn about the plant life of long ago, scientists dig through layers of the Earth, looking for fossil clues. Like bits of fossilized pollen, or spores.

"And that's where I co

2018-01-16 所属栏目:科学美国人

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 ast

2018-01-11 所属栏目:科学美国人

Populations of frogs, salamanders and other amphibians are declining around the world—even in protected areas, like U.S. national parks. Ecologists needed a simple method to

2018-01-10 所属栏目:科学美国人

“There&rsquo;s three strategic trends that I see in space.”

General Jay Raymond, Commander of Air Force Space Command in Colorado Springs. He recently visited Scientif

2018-01-04 所属栏目:科学美国人

Happy New Year! And if you&rsquo;ve been away from work for a few days, you deserve some time off. After all, you&rsquo;ve traveled far. Even if you just stayed at home. According

2018-01-03 所属栏目:科学美国人

In the most recent podcast we discussed how baby bats learn their calls from all the other bats in their crowded colonies. And we mentioned in passing that songbirds usually get tu

2018-01-02 所属栏目:科学美国人

Bats are sophisticated communicators. And not just when they&rsquo;re in vampire form. New research finds that Egyptian fruit bats actually have regional dialects, depending on the

2017-12-29 所属栏目:科学美国人

Small, tasty mammals like dwarf mongooses have one main goal: do not get eaten. So the animal—a type of weasel—has a surveillance system. While most of the group focuse

2017-12-26 所属栏目:科学美国人

Are you one of those people who can tell when a storm is approaching based on your achy knees? Well, you may think you are. But a new study of more than 1.5 million seniors finds n

2017-12-25 所属栏目:科学美国人

Solar companies are obviously in the business of building solar energy farms. But here's another way the solar developers are spending their money: to protect and relocate desert

2017-12-25 所属栏目:科学美国人

They're among the most amazing events of the wild world:

Africa's thundering herds of wildebeest. <<BBC: "...and nothing will stop them now.">>

The incredible migrating monar

2017-12-21 所属栏目:科学美国人

Music includes a lot of repetition. What would your favorite song be without a chorus? But the connection runs even deeper than that. Because the very act of repeating something ca

2017-12-19 所属栏目:科学美国人

<ECG sound> That beeping sound is the normal beating of a heart.

<ECG fast sound> But here's what the same heart sounds like, during a bout of ventricular tachycardia, or VT&hell

2017-12-18 所属栏目:科学美国人

When an earthquake hits or a volcano erupts, scientists traditionally record the shaking using a specially designed instrument called a seismometer. These sensors are extremely sen

2017-12-18 所属栏目:科学美国人

If you&rsquo;ve spent any time hitting up the giant wholesalers or other markets this holiday season, you&rsquo;ve probably figured out that you can make a full meal out of the tas

2017-12-15 所属栏目:科学美国人

Light doesn't travel well underwater. So dolphins and other toothed whales navigate like bats, using echolocating clicks. <click sound>

"They're like lasers of sound they produc