Science: News from Underwater

Seafood has enough problems to keep biologists busy. A few new items:

Fast Enough. How fast is a snail's pace? At College Park, Md., U.S. Fish & Wildlife Service conchologists (mollusk fanciers) were measuring to find out. Dr. Paul Galtsoff puts a seagoing snail inside a drum of transparent plastic. When the snail moves (either forward or backward) the drum revolves, recording the snail's motion on a sheet of smoked paper. Conchs move fastest: an average 19 feet an hour. Little oyster drills, one inch long, move only a couple of feet.

Dr. Galtsoff has...

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