zoophilia vs zoophilism

zoophilia

noun
  • Human sexual attraction toward or sexual interaction with non-human animals. 

  • Excessive fondness for animals. 

zoophilism

noun
  • An affection for non-human animals 

  • A preference of a parasite or vector to feed on non-human animals 

  • Zoophilia, a sexual inclination towards bestiality 

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