The line "we take care of our colleagues here" was so genuinely sweet? I love that. I love these clams.,(reply>), i don't like the term 'sweet' her, just interesting, in a postive sense,(reply>), And not only can they help protect us from potentially contaminated drinking water, but they also are very important natural filters for freshwaters worldwide, helping to clean our rivers and streams. Unfortunately freshwater mussels are one of the most endangered group of organisms in the world and they need our help to prevent extinction of species of mussels. The more we help protect them, the more they can help protect/clean the waters we rely on!