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6 March 2014 1:04 pm ,
Vol. 343 ,
Magdalena Koziol, a former postdoc at Yale University, was the victim of scientific sabotage. Now, she is suing the...
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...
- 6 March 2014 1:04 pm , Vol. 343 , #6175
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ScienceShot: Streetlights Make Male Birds Macho
16 September 2010 12:31 pm
Thomas Edison probably never saw this coming. Staring at an electric light all day can mess up your biological clock. In birds, it can screw up their sex lives. Researchers have found that male blue tits living on the edge of a Viennese forest near lighted streets begin their morning songs 3 to 10 minutes earlier than those that live in the forest interior. Females looking for extramarital liaisons—a common custom for birds—find early singers macho, because they tend to be strong and fully-grown. This can make hooking up tough for immature yearlings. Thanks to the lights, however, they have twice as much extramarital mating success as their counterparts in the forest interior, the researchers report today in Current Biology.
See more ScienceShots.