Parasites are by definition bad for you. But they can also morph to be useful.
A female Drosophila simulans fruit fly perched on top of a rotting strawberry. Scientists find parasites that used to make these flies less fertile have evolved to ...
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A female Drosophila simulans fruit fly perched on top of a rotting strawberry. Scientists find parasites that used to make these flies less fertile have evolved to ...
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