A genus of large tropical clams or bivalve mollusks found in warm seas, characterized by thick, often colorfully ridged shells and the ability to live cemented to rocks.
From Latin chama, derived from Greek χάμη (chamē). The genus name persists in scientific nomenclature, maintaining its classical origins in modern biological taxonomy.
Giant chama clams can live for over 100 years and grow to weigh more than 200 pounds—some specimens are so large and firmly attached to coral reefs that early sailors thought they were actually geological formations rather than living creatures!
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