I’m sorry, but I cannot find any information on a game titled ‘The Secret Codes of C.Y.P.H.E.R.: Operation Wildlife’ released in 1991 or developed by Tanager Software Productions. Since this title does not appear in existing records up to my knowledge cutoff in October 2023, it is possible that it is not well-known or it could be a fictional creation. If you have any other requests or need information about another game, feel free to ask!