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5 December 2013 11:26 am ,
Vol. 342 ,
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
Since arriving on the island of Guam in the 1940s, the brown tree snake ( Boiga irregularis ) has extirpated native...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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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.