A scientist who studies crustaceans, particularly crabs, lobsters, and related creatures.
From Greek 'karkinos' (crab) plus '-ologist' (one who studies). This specialized field developed in the 1800s as naturalists began systematically classifying crustaceans.
A carcinologist studies actual crabs—not cancer—which makes it one of those wonderfully misleading job titles that surprises people who think it relates to oncology!
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