Chimpanzee Vocalizations

Vocal communication also conveys a wide variety of emotional states and intentions and often serves to affect the behaviors of those that hear the calls. Chimpanzee vocalizations are a graded system formed from only 4 different call types: grunts, barks, screams, and hoots.  However, some 32 different calls have been distinguished by humans.

Communicating with chimpanzees requires a good ear to differentiate their calls. Some of their vocalizations include the:

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PANT-HOOT

One of the most commonly heard calls used to signify food enjoyment, social excitement and sociability.  It is a four part call which starts with soft “hoos” and increasing in volume as the “hoos” build up to the climax of the call, made up of screams and sometimes barks, followed by the ending, in which screams die down to soft “hoos.”

Thiele_panthoot

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FOOD GRUNT

Chimpanzees grunt in pleasure when they come across especially delicious food.

cj_yum

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PANT-HOOT

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