News
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AnimalsWhen rare species eat endangered ones
To cut down on their salmon smolt catch, Caspian terns were encouraged to move from one island to another in the Columbia River.
By Susan Milius -
AnimalsOops. New feathers turn out lousy
Going to the trouble of molting doesn't really get rid of a bird's lice after all.
By Susan Milius -
AnimalsStinking decorations protect nests
The common waxbill's habit of adorning its nests with fur plucked from carnivore scat turns out to discourage attacks from predators.
By Susan Milius -
ChemistryChemists redesign natural antifreeze
Researchers have synthesized a family of artificial molecules that resemble the compounds that keep Antarctic and Arctic fish from freezing.