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Going to the trouble of molting doesn't really get rid of a bird's lice after all.
The common waxbill's habit of adorning its nests with fur plucked from carnivore scat turns out to discourage attacks from predators.
The skeleton of brittlestars doubles as an array of optically precise lenses that rival plastic microlenses designed by engineers.
The first report on Atlantic bluefin tuna wearing electronic tags reveals much more dashing across the ocean than expected.
The largest bat in Europe may hunt down migrating birds.
As their first reproductive peak wanes, female cockroaches become more like male ones, willing to mate with any potential partner that moves.
Researchers have identified a particular exhalation that dogs make while playing as a possible counterpart to a human laugh.
Newly hatched California condor chicks indicate that reproduction is again taking place in the wild.
A gender-bent mite—in which altered males give birth as virgins—turns out to be the first species discovered to live and reproduce with only one set of chromosomes.
Drosophila have a rotating ear—and odor-sensing—structure that's new to science.
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