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A subspecies of one of New Guinea's poisonous pitohui birds may be mimicking a toxic neighbor, according to a new genetic analysis.
With the snap of a claw, a pinkie-size ocean shrimp generates a collapsing air bubble that's hot enough to emit faint light.
Meerkat pups growing up in large, cooperative groups are heftier because there are more adults to entreat for food.
A series of staged conflicts reveals the first known acoustic duels in caterpillars.
Hungry chicks cheeping in their nest have inspired a whole branch of scientific inquiry.
Who says cats aren't social? And other musings from scientists who study cats in groups.
A right whale may weigh some 70 tons, but unlike other marine mammals studied so far, it tends to float rather than sink at great depths.
An as-yet-unnamed species of octopus seems to be protecting itself by impersonating venomous animals from sea snakes to flatfish.
Pileated woodpeckers destroy in an afternoon the nesting cavities that take endangered red-cockaded woodpeckers 6 years to excavate.
To cut down on their salmon smolt catch, Caspian terns were encouraged to move from one island to another in the Columbia River.
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.