gorilla vs great ape

gorilla

noun
  • The largest of the apes, belonging to the genus Gorilla, native to the forests of central Africa and known for their trait of knuckle-walking. 

  • A big and brutish man or a thug; a goon or ruffian. 

  • A powerful person or organization; a heavyweight or behemoth. 

great ape

noun
  • Any member of the taxonomic family Hominidae, including gorilla, orangutan, chimpanzee, excluding Homo. 

  • Any member of the taxonomic family Hominidae, including Homo, and also many similar extinct species. 

How often have the words gorilla and great ape occurred in a corpus of books? (source: Google Ngram Viewer )