http://www.helium.com/knowledge/202776-what-is-it-about-catnip-that-makes-cats-go-crazy.xml Helium.com > Cat Psychology > What is it about catnip that makes cats go crazy? en-us Copyright Helium.com Mon, 03 Aug 2009 17:49:59 GMT Mon, 03 Aug 2009 17:49:59 GMT