标签 科学美国人 下的文章

蒙娜丽莎效应

Mona Lisa Effect

Leonardo da Vinci's most famous painting also has an optical illusion named after it: the Mona Lisa effect. The feeling that the subject of a painting follows you with her gaze. "You continuously feel like you're being looked at, despite moving to the left, to the right, perhaps even rotating the picture."

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超人不会飞

Superhero Altruism

Have you ever left the theaters after watching a Batman or Superman movie feeling like you wanted to be a better person? If so, you're not alone. Research finds that superheroes may be more than just entertaining - they can also influence people to do good deeds.

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房子重要还是传宗接代重要

Hermit Crab Equipment

"So, I never really thought I'd study penis size, but I sort of stumbled on this topic." Mark Laidre, a biologist at Dartmouth College. Laidre travels to Costa Rica to study hermit crabs, a species called Coenobita compressus. These land crabs do some interior remodeling of their adopted shells: they extensively hollow them out, removing struts called spiral columella, to give themselves some extra elbow room. The renovation renders the shells more precious to their owners - and to other covetous crustaceans as well.

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小心单糖杀死益生菌

Sweets & Gut Bugs

We all know that stuffing our faces with sweet treats is not good for us. In part because it’s bad for the health-promoting bacteria that inhabit our intestines. Now, researchers have figured out how simple sugars wipe out a particular strain of beneficial gut microbes.

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