pygmy chimpanzee vs bonobo

pygmy chimpanzee and bonobo both are nouns.

Word	Noun	Adjective	Verb	Adverb
pygmy chimpanzee	Yes	No	No	No
bonobo	Yes	No	No	No

As nouns, pygmy chimpanzee and bonobo are synonyms defined as:

pygmy chimpanzee and bonobo: small chimpanzee of swamp forests in Zaire; a threatened species

Other synonyms of pygmy chimpanzee include Pan paniscus.

pygmy chimpanzee (noun)	bonobo (noun)
small chimpanzee of swamp forests in Zaire; a threatened species	small chimpanzee of swamp forests in Zaire; a threatened species