Approximately how far can a hard clam move across the sandy ocean floor during a fifteen-minute period?

Answer

One to two inches

The movement of the hard clam is described as glacial, capable of covering a distance of only about one to two inches over a span of fifteen minutes.

Approximately how far can a hard clam move across the sandy ocean floor during a fifteen-minute period?

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Quahog facts: the clams of clam chowder | Animal Fact Files

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