Stanislaus Berent (November 24, 1901 – 1980) was an American freak who performed at many freak shows, including the World Circus Sideshow in 1941 under the stage name of Sealo the Seal Boy (often stylized to just Sealo). He was known for his seal-like arms, which were caused by a congenital medical condition known as phocomelia. In 2001, Mat Fraser's play inspired by Sealo called Sealboy: Freak debuted.
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