SHRIMPING
'(<a href="http://www.j-archive.com/media/2006-04-18_DJ_30.jpg" target="_blank">Kelly of the Clue Crew plays with her food on a shrimp boat in Savannah, GA.</a>)  Shrimp typically swim backwards by flexing the tail & <a href="http://www.j-archive.com/media/2006-04-18_DJ_30a.jpg" target="_blank">these</a> aptly-named appendages on the abdomen'
swimmerets