Reviews Coding and Redundancy: Man-Made and Animal-Evolved Signals by Jack P. Hailman Harvard Univ., 2008, 257 p., $39.95 Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News November 21, 2008 at 1:58 pm Traffic lights and primate vocalizations encode information in similar ways. Coding and Redundancy: Man-Made and Animal-Evolved Signals by Jack P. Hailman