![The sperm of some rodent species form ‘trains’. Up to several dozen cells attach to one another using hooks on their heads, and swim in concert. A sperm train can swim up to 50% faster than a lone cell.
When the sperm of two P. maniculatus [a polygamous mouse species] individuals is mixed, the sperm [also] separate out to form trains with sperm from the same male, even if the sperm came from two siblings.
(via Brother sperm train together : Nature News)](http://24.media.tumblr.com/tumblr_kwuk8hDK7q1qzggf7o1_400.jpg)
The sperm of some rodent species form ‘trains’. Up to several dozen cells attach to one another using hooks on their heads, and swim in concert. A sperm train can swim up to 50% faster than a lone cell.
When the sperm of two P. maniculatus [a polygamous mouse species] individuals is mixed, the sperm [also] separate out to form trains with sperm from the same male, even if the sperm came from two siblings.
(via Brother sperm train together : Nature News)
January 26, 2010, 10:12am
