The sand around him was strewn with fossil shark teeth, sea urchin spines, and the bones of giant catfish.
四周的沙粒，散落着鲨鱼牙齿、海胆脊椎、巨型鲶鱼的化石。
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A sand tiger shark off the Bonin Islands will soon give birth.
小笠原群岛外，一只虎头鲨即将产仔。
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