Isao Kawazu of the Okinawa Churashima Research Center compares the flukes of a recently photographed whale to those on file.

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Photo credit: © Chris Willson / Alamy / Afripics
License: Licensed
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Keywords: center, churashima, compares, file., flukes, humpback, identification, identifying, isao, kawazu, okinawa, photographed, research, tail, whale