predator vs prey

predator

noun
  • A sexual predator. 

  • Any animal or other organism that hunts and kills other non-plant organisms (their prey), primarily for food. 

  • Someone who attacks and plunders for gain. 

prey

noun
  • That which is or may be seized by animals or birds to be devoured 

  • A person or thing given up as a victim. 

  • A living thing that is eaten by another living thing. 

  • The victim of a disease. 

verb
  • To act as a predator. 

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