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17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
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ScienceShot: Working (Too) Hard for Love
22 May 2013 4:15 pm
Male strawberry poison frogs (Oophaga pumilio) work hard to woo the opposite sex with constant and intense vocalizations until they find a mate. But a new study indicates that all this effort is for naught. Researchers have found that despite the male's best efforts to impress, females simply mate with the closest frog to them. By choosing a neighbor, females minimize the risk of not mating at all, as receptive females abound and they have only a short time to fertilize their eggs. Although this behavior may seem careless, it is the optimal approach in a system where males are constantly fighting to secure a territory, the team reports this month in Frontiers in Zoology. Females can simply choose the closest frog as, after their fighting, all victorious males with an established territory are of an acceptable standard to mate. Why go further afield, when the guy next door is just as good? The males' elaborate courtship display is still essential, however, to ensure females can hear them. Shy and silent males go dateless.
See more ScienceShots.