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Posted by duddy   September 22, 2013   3059 views

Zookeepers at Central Park Zoo in the US assumed their cotton-top tamarins were falling silent every time someone entered their enclosure, but spectrograms, which provide visual representations of sound, revealed what was really going on. These little monkeys were actually whispering their alarm calls instead of shouting them, which is the first evidence of whispering in a non-human primate species.

monkeys apes
Posted in Discoveries
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Do you think they're talking about us? I think they're talking about us.
Posted on Sep 22, 2013 by Guy
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