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概述：If you were a rat,what would you do when your cage mate was trapped by something? Do they really as selfish as we thought?



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Nell Greenfieldboyce
Peggy Mason
the University of Chicago
Calling someone a rat means you think they're a scoundrel, the kind of person who would abandon others in their time of need. A new study shows actual rats are not like that. NPR's Nell Greenfieldboyce reports rats will actually lend a helping paw to a cage mate in distress. Pretend you're a rat. For a couple of weeks, you've lived with a cage mate. You've gotten to know each other. One day, your cage mate disappears. A human picks you up and puts you in a plastic box. There before you is your cage mate, trapped in a narrow plastic tube, clearly unhappy, maybe even making ultrasonic distress calls that you can hear, because remember, you are a rat. What would you do? Peggy Mason is a neurobiologist at the University of Chicago. She and her colleagues recently put rats in this situation. And she says, it's as if the free rat immediately sizes things up and takes action. The rat will go to the tube where its pal is imprisoned, stand on the tube, bite it, paw at it.