Prehistoric 'Supersharks' Swam Oceans Earlier Than Previously Thought, Researchers Say

Prehistoric ‘Supersharks’ Swam Oceans Earlier Than Previously Thought, Researchers Say Newly discovered fossils indicate that giant sharks swam throughout ancient oceans 170 million years earlier than researchers previously thought. Source: Natures Talk Show via Nature World News Prehistoric ‘Supersharks’ Swam…

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