WEEKAPAUG, Ri. — An 11-year-old Rhode Island boy out clamming with his grandfather pulled what he initially thought to be a rock out of the water and discovered it was actually a massive quahog, a large species of clam.

The University of Rhode Island’s Marine Science Research Facility in Narragansett Bay said Cooper Monaco, 11, was clamming with his grandfather in Weekapaug when he discovered the quahog, which measures 5.75 inches across and weighs 2 pounds, 7.75 ounces.

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