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Life & Evolution

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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.

swimming brine shrimp

MIXING IT UP  One swimming brine shrimp generates small-scale turbulence (time lapse of suspended particles in green). But large numbers of the animals together may create currents that stir oceans.

harbor seal

SEAL MEAL  A harbor seal digs its claws into a salmon. Sea lions and some other seal species have sturdy flippers instead of paws, and so can’t grasp prey in this way.

Life & Evolution

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