9/25/2013

Researchers have caught cotton-top tamarins at the Central Park Zoo in the act of sharing secrets. "We exposed a family of captive cotton-top tamarins to a supervisor who previously elicited a strong mobbing response," the authors wrote, detailing their protocol for capturing audio and video data. "... Consistent with whisper-like behavior, the amplitude of the tamarins' vocalizations was significantly reduced only in the presence of the supervisor."

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