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SSS 2010-04-16

Invasive species can decrease biodiversity and drive resident species to the brink of extinction. But how do these interlopers fare so well in unfamiliar territory? One idea is that theyve escaped their enemies, for example, the parasites that keep t

SSS 2009-08-04

This is Scientific Americans Sixty-second Science. Im Cynthia Graber. This will just take a minute. Poor old spleen, it never got the recognition it deserved. Until now. Scientists had known that the spleen is part of our immune systems. But it was c

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【荆棘鸟】第六章 16

And drenching: the administration of medicine through huge syringes rammed down the throat, to rid the sheep of intestinal parasites. For work with the sheep never, never ended; as one job finished it became time for another. They were mustered and g

陨落星辰第二季 第29期:绑住汤姆

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