http://www.pbs.org/wgbh/nova/sciencenow/0305/01.html Meet the terrifying, bloodsucking, decorated leech! Neil deGrasse Tyson embarks on a quest with leech expert Mark Siddall in the swamps of Connecticut to seek out the infamous decorated leech. Don't miss the new episode of NOVA scienceNOW, airing Wednesday, July 23 at 9pm on PBS. Watch past episodes of the program, try out interactives, and more on our Web site: http://www.pbs.org/nova/sciencenow
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