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At what age do harp seals become known as bedlamers?

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A mother harp seal and a young “whitecoat.” Adult harp seals are gray with black spots. Young harp seals are called “whitecoats,” “bedlamers,” “beaters,” or “graybacks,” depending on their age. — harp seal A mother harp seal and a young “whitecoat.” Adult harp seals are gray with black spots. Young harp seals are called “whitecoats,” “bedlamers,” “beaters,” or “graybacks,” depending on their age.

Harp seals are referred to as "bedlamers" at 13–14 months of age, following their second molt when their spotted pelt remains.1