grampus vs social whale

grampus

noun

  • The killer whale, Orcinus orca. 

  • The hellbender salamander, Cryptobranchus alleganiensis. 

  • Risso's dolphin, Grampus griseus, with a blunt nose. 

  • giant whip scorpion (Mastigoproctus giganteus) 

social whale

noun

  • pilot whale 

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