Communication and Perception
Bonobos communicate in a variety of ways. Females have a scream, but males bark, grunt, and pant-hoot. A bark may indicate alarm, whereas other vocalizations may indicate aggression, excitement, satisfaction, etc. The separate types of calls are used in multiple contexts, and cannot be thought of as "words".
In addition to this vocal communication, tactile communication is important. Social rank is communicated by GG rubbing, mounting, or rump contact. (See behavior section.) Other forms of tactile communication are seen between mothers and their offspring, and between rivals.
Visual communication also occurs. Bonobos often "peer" at another individual. This behavior indicates interest in the activity of the "peered at" individual. Peering may occur when oneother bonobo has a food item that is wanted, or it may be included in the courtship behavior of a male.
Communication Channels: visual ; tactile ; acoustic ; chemical
Perception Channels: visual ; acoustic
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