Well, the ducks already seem to have us beat in the genital arms race, anti-r**e secretions and all:http://scienceblogs.com/notrocketscience/2009/12/22/ballistic-penises - and-corkscrew-vaginas-the-sexual-battles/ Cut and paste the link yerself cuz it's NOT SAFE FOR WORK! (also remove the spaces or it won't work)







