Extinct megatooth sharks were globally distributed and contributed to ocean food chains that were potentially one to two steps longer than any food chain today.

中文翻译：

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哦，鲨鱼有这样的牙齿：巨齿鲨在史前食物网中发挥了更大的作用吗？


已灭绝的巨齿鲨分布于全球，形成的海洋食物链可能比当今任何食物链都要长一到两步。