[ Your Name ] would like to inform you about this article on Complexity Digest 2002.29 - 09 http://comdig.unam.mx/index.php?id_issue=2002.29#7316 22-Jul-2002 [ Your Message ] Sperm Train To Win, Nature Science update Excerpts: Mouse sperm team up to speed their route to the egg. New research shows that hundreds of individuals form fast-swimming packs to give their genes the best chance against other males' sperm. (...) "They're like the carriages of a train," says Moore, who works at the University of Sheffield, UK. In the lab, trains can swell to thousands of sperm. In female mice they tend to number 50-200 cells. Groups travel roughly 50% faster than loners - especially in viscous fluid like that in the female reproductive tract. Sperm Train To Win, Sperm Teams Out-Swim The Competition, John Whitfield, Nature Science update, 02/07/11 You can discuss this article on Articles Forum http://comdig.unam.mx/topic.php?id_article=7316