Pregnancy Tests Indirectly Responsible for Extinction of Species

Via Slate:

A fungus that grows on the backs of frogs may be responsible for the extinction of dozens of species, say the authors of a study published in Thursday's issue of Nature. Amphibian chytrid fungus seems to have spread around the world astride the South African clawed frog, Xenopus laevis, which was exported for use as a pregnancy test...

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