caulking vs eared seal

caulking

noun
  • A sealing material used to seal joints between heterogeneous materials in many kinds of construction and manufacture. 

eared seal

noun
  • A seal belonging in the Otariidae family; a fur seal or a sea lion, differing from the true seals in having small, visible ears and the ability to walk on land. 

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