catena vs zoo

catena

noun
  • A series of related items. 

  • A series of distinct soils arrayed along a slope. 

zoo

noun
  • A large and varied collection of something. 

  • A zoophile. 

  • A park where live animals are exhibited. 

  • The jungle. 

  • Any place that is wild, crowded, or chaotic. 

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