> about one-third of cats are not affected by catnip.[6][7][26][34] The behavior is hereditary.[35] https://en.wikipedia.org/wiki/Catnip#Effect_on_felines http

> about one-third of cats are not affected by catnip.[6][7][26][34] The behavior is hereditary.[35] https://en.wikipedia.org/wiki/Catnip#Effect_on_felines https://en.wikipedia.org/wiki/Catnip#Effect_on_felines