sabre-toothed tiger vs shrew

sabre-toothed tiger

noun
  • Any of numerous species of extinct cat-like mammals, of the Machairodontinae subfamily of the Felidae. 

shrew

noun
  • Any of numerous small, mouselike, chiefly nocturnal, mammals of the family Soricidae (order Soricomorpha). 

  • Certain other small mammals that resemble true shrews (order Soricomorpha). 

  • An ill-tempered, nagging woman: a scold. 

How often have the words sabre-toothed tiger and shrew occurred in a corpus of books? (source: Google Ngram Viewer )