http://humorfeed.com/story.php?title=%E2%80%98mature%E2%80%99-sperm-%E2%80%98takes-it-time-wines-and-dines%E2%80%99-say-scientists 'They also seem to form an orderly queue at the fallopian tubes in a 'very polite and English considerate 'you first, no after you' fashion'. Mon, 21 Sep 2015 19:27:53 UTC en