Assessment of meaning and the detection of unreliable signals by vervet monkeys

  title={Assessment of meaning and the detection of unreliable signals by vervet monkeys},
  author={Dorothy L Cheney and Robert M. Seyfarth},
  journal={Animal Behaviour},
Free-ranging vervet monkeys, Cercopithecus aethiops, who had learned to ignore playbacks of one type of call by an unreliable signaller subsequently also ignored playback of an acoustically different call by the same individual if the calls had similar referents. Such transfer did not occur if either the identity of the signaller changed or if the two calls had different referents. After repeatedly being played an intergroup call in the absence of other groups, vervets also ignored an… Expand

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