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Updated: Aug 24, 2026

A Protocol for Bioinspired Design: A Ground Sampler Based on Sea Urchin Jaws
Published on: April 24, 2016
Peculiar circular and C-shaped injuries on a body from the sea
Yoko Makino1, Katsunori Tachihara, Saori Ageda
1Department of Legal Medicine, School of Medicine, University of the Ryukyus, Okinawa, Japan. makino@med.u-ryukyu.ac.jp
Abstract:
A case where a body with unusual circular injuries was found in the sea is presented. The victim was a 60-year-old woman who had been depressed and had attempted suicide before. She was missing for 6 days before the corpse was found. The body had several almost perfectly circular injuries and C-shaped incision injuries with almost circular flaps of skin. We concluded that the cause of the peculiar circular injuries might be bite marks of Isistius spp. (I. brasiliensis and/or I. plutodus), commonly known as cookie-cutter shark because of its very unusual feeding style.
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