Pongo pygmaeus vs great ape

Pongo pygmaeus and great ape both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pongo pygmaeus	Yes	No	No	No
great ape	Yes	No	No	No

As nouns, great ape is a hypernym of Pongo pygmaeus; that is, great ape is a word with a broader meaning than Pongo pygmaeus:

Pongo pygmaeus: large long-armed ape of Borneo and Sumatra having arboreal habits
great ape: any of the large anthropoid apes of the family Pongidae

Other hypernyms of Pongo pygmaeus include pongid.

Pongo pygmaeus (noun)	great ape (noun)
large long-armed ape of Borneo and Sumatra having arboreal habits	any of the large anthropoid apes of the family Pongidae