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Life & Evolution

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field experiment of CO2 levels

GREENHOUSE GASSED  In a long-running field experiment in Minnesota, scientists are studying the effects of rising atmospheric carbon dioxide levels on plots of grassland.

fruit fly

RED-LIGHT DISTRICT  Levels of a brain reward compound increased in male fruit flies genetically engineered to ejaculate when exposed to red light when the insects were bathed in the rosy hue.

pile of plastic trash

TRASH STASH  Scientists have modified a bacterial enzyme to make it even better at breaking down PET, a plastic widely used in disposable water bottles.

Life & Evolution

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