human vs simian

human

noun
  • The tallest, most abundant and most intelligent of primates; Homo sapiens. 

  • Any hominid of the genus Homo. 

adj
  • Of or belonging to the species Homo sapiens or its closest relatives. 

  • Having the nature or attributes of a human being. 

verb
  • To behave as or become, or to cause to behave as or become, a human. 

simian

noun
  • An ape or monkey, especially an anthropoid. 

adj
  • Bearing resemblance to an ape. 

  • Of or pertaining to apes; apelike. 

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