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Antiretroviral drugs can protect people from becoming infected by HIV. But so-called pre-exposure prophylaxis, or PrEP...
Two studies show that eating a diet low in protein and high in carbohydrates is linked to a longer, healthier life, and...
Considered an icon of conservation science, researchers at World Wildlife Fund (WWF) headquarters in Washington, D.C.,...
The new atlas, which shows the distribution of important trace metals and other substances, is the first product of...
Early in April, the first of a fleet of environmental monitoring satellites will lift off from Europe's spaceport in...
Since 2000, U.S. government health research agencies have spent almost $1 billion on an effort to churn out thousands...
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
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ScienceShot: Whisper While You Lurk
5 October 2011 4:34 pm
If you want to upset a rival, try whispering. That's a piece of advice that seems to work for dark-eyed juncos, a small, grayish sparrow common in North American forests. Males of this species are more likely to tick off other males when they chirp a soft, complex song than when they blast a loud, territorial song, according to research published this month in The American Naturalist. Males that heard a recording of the quiet song actively searched for the offending male, an encounter that could lead to a fight in the wild, especially during breeding season. Males that heard the loud song, meanwhile, often ignored it. Whispered songs are usually meant for females during courtship, the researchers say, so when another male hears it, he thinks someone is trying to steal his mate right from under his beak.
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