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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
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,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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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.