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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: Orangutans Decipher Each Other's Calls
9 March 2010 8:25 pm
Orangutans are pros at calling to each other through dense foliage. A new study examined orangutans' long-distance calls, which travel as far as 1 kilometer, in Borneo’s rainforest in Indonesia. Listening in on the calls from three males and observing how females reacted, researchers confirmed an earlier finding that orangutans know who the call is coming from. They also report in Ethology that the females react differently based on the context of a male's call: For example, they tended to ignore long calls that the males emitted following a disturbance, such as a tree falling, but those with infants—-like the one here—moved away from “spontaneous” long calls, which the males may emit to attract mating females.