Animals
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AnimalsUpside Way Down: Video turns fish story on its head
The first video of whipnose anglerfish reveals them swimming upside down and trolling for prey on the 5,000-meter deep ocean floor.
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AnimalsThat special wax lasts after courtship
Sandpipers' special wax for their wings during the breeding season may have less to do with courting a mate and more to do with sitting on eggs.
By Susan Milius -
AnimalsThe truth is, frogs bluff and crabs cheat
Two research teams say they've caught wild animals bluffing, only the second and third examples (outside of primate antics) ever recorded.
By Susan Milius -
AnimalsMusic without Borders
When birds trill and whales woo-oo, we call it singing. Are we serious?
By Susan Milius -
AnimalsEat the Kids: Are cannibal fish just freshening the O2?
In beaugregory damselfish, males that snack on some of the eggs supposedly in their care may end up benefiting the rest of the egg clutch by making more oxygen available.
By Susan Milius -
AnimalsPregnant—and Still Macho
Some of the basic theories of sexual behavior and sexual selection are getting attention thanks to a burst of new studies in the topsy-turvy social world of the seahorse, where the males get pregnant.
By Susan Milius -
AnimalsHormone still rules no-tadpole frogs
Coqui frogs may skip the tadpole stage, but within the egg, they undergo a metamorphosis ruled by thyroid hormone.
By Susan Milius -
AnimalsMany fish run on empty
Many fish eat all the time, while some others spend their days going from brief feast to lengthy famine.
By Janet Raloff -
AnimalsSinging frog in China evokes whales, primates
A frog in China warbles and flutes with such versatility that its high-pitched calls sound like those of birds or whales.
By Susan Milius -
AnimalsAnt Enforcers: To call in punishment, top ant smears rival
In Brazilian ant colonies where a female has to fight her way to the top, she stays in power through some judicious gang violence.
By Susan Milius -
AnimalsBlame winter for the vanishing sparrows
Changes in winter farming practices may help explain a puzzling drop in number of rural house sparrows in southern England.
By Susan Milius -
AnimalsGetting a Grip: How gecko toes stick
Scientists have pinned down the molecular basis of the gecko's astonishing ability to scamper up polished walls and hang from ceilings, paving the way for a new type of synthetic dry adhesive.
By Kristin Cobb