Clams

Relly has been finding clams with "pearls" stuck on the inside of their shells. She told me that the sexes are seperate in clams. Is that true?
More later . . . there are three bags of garbage in the trunk of my car with 8,000 fruit flies pounding on the trunk lid saying; "We want in . . . NOW!". I need to deal with that . . . NOW! I'll have more to say on "Business and Biology" later. No, not next year!
Bio. Guy