chimpanzee vs gorilla

chimpanzee

noun
  • Pan troglodytes, a species of great ape in the genus Pan, native to Africa, and believed by biologists to be the closest extant relative to humans along with the bonobo. 

  • A member of the genus Pan, including the bonobo which is also known as the pygmy chimpanzee. 

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. 

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