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24 April 2014 11:45 am ,
Vol. 344 ,
Major climate data sets have underestimated the rate of global warming in the last 15 years owing largely to poor data...
The tsetse fly is best known as the vector for the trypanosome parasites that cause sleeping sickness and a disease in...
The National Institutes of Health is revising its "two strikes" rule, which allowed researchers only one chance to...
By stabilizing the components of retromers, molecular complexes that act like recycling bins in cells, a recently...
Fossil fuels power modern society by generating heat, but much of that heat is wasted. Semiconductor devices called...
Researchers are gaining insights into what made Supertyphoon Haiyan so powerful and devastating through post-storm...
Millions around the world got a first-hand look at what it was like to be in Tacloban while it was pummeled by...
- 24 April 2014 11:45 am , Vol. 344 , #6182
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ScienceShot: Is a Warbler Local? Listen to His Song
6 May 2010 11:28 am
Female warblers love a man who knows his way around town. And she can tell who that is simply by listening to his call, according to a study published online in the journal Animal Behaviour. Researchers found that older great reed warbler (Acrocephalus arundinaceus) males were more accomplished singers than younger males, being able to perform tricky double-syllable whistles, compared with the monosyllabic whistles of younger males. Also, the more a male—young or old—remained true to a particular locale, the more consistent his performances were. Males with the most sophisticated and consistent whistles had the largest harems, suggesting that females are listening for a mate who knows where to find food, build nests, and avoid predators in the region.
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