Mud snails
http://www.idahostatesman.com/news/story.asp?ID=61284
Zebras in seven more Michigan lakes
http://www.freep.com/news/statewire/sw93145_20040218.htm
Stop Aquatic Hitchhikers Campaign
http://www.protectyourwaters.net/news/display.php?id=527
http://www.protectyourwaters.net/news/display.php?id=527