Pan paniscus vs chimpanzee

Pan paniscus and chimpanzee both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pan paniscus	Yes	No	No	No
chimpanzee	Yes	No	No	No

As nouns, chimpanzee is a hypernym of Pan paniscus; that is, chimpanzee is a word with a broader meaning than Pan paniscus:

Pan paniscus: small chimpanzee of swamp forests in Zaire; a threatened species
chimpanzee: intelligent somewhat arboreal ape of equatorial African forests

Other hypernyms of Pan paniscus include chimp, Pan troglodytes.

Pan paniscus (noun)	chimpanzee (noun)
small chimpanzee of swamp forests in Zaire; a threatened species	intelligent somewhat arboreal ape of equatorial African forests