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Life & Evolution

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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.

packaged meat

GUT WRENCHING  Pathogen detectors built into food packaging could help curb the spread of foodborne illness.

Life & Evolution

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