Primate sometimes referred to as a pygmy chimpanzee
They also practice so-called penis-fencing, in which two males hang face 
to... [DOC] [TLE] bonobo | primate | Britannica.com [PAR] Bonobo (Pan paniscus), also called pygmy chimpanzee, ape that was ... 
Bonobos sometimes mate in a face-to-face position, which is rarely seen among
... [DOC] [TLE] Bonobos | BCBI - Bonobo and Congo Biodiversity Initiative [PAR] The bonobo (Pan paniscus) is a great ape most closely related to the ... originally 
called the "pygmy chimpanzee," but the term bonobo is used more widely today.