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Life & Evolution

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Pseudomonas fluorescens

Two mutations allowed soil bacteria (Pseudomonas fluorescens) to re-evolve flagella: One pumped up levels of a protein than controls nitrogen uptake, and one that switched that protein’s job to flagella production control.

AFTERMATH  Intimate mating concerns among Anopheles mosquitoes may have inadvertently pushed the evolution of greater ability to spread human malaria.

potato bug

FOUL FEAST  Plants with potato beetle genes make a kind of RNA that attacks the bugs when they start munching.

Life & Evolution

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