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Title: Can anyone whisper, evolution? Written by: duddy on Sep 22, 2013 (https://biology-forums.com/gallery/47/4_22_09_13_1_04_17.jpeg) (https://biology-forums.com/index.php?action=gallery;sa=view;id=14051) 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. Comments: Do you think they're talking about us? I think they're talking about us. Written by: Guy on Sep 22, 2013 |