beast of prey vs zoophagan

beast of prey

noun
  • A carnivorous animal that hunts for its food, especially one that preys on vertebrates. 

  • A predatory person, savagely cruel and ruthless in their treatment of others. 

zoophagan

noun
  • A carnivore. 

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