Assertion: large shark | /r/HasAspect | a lifespan of 20 – 40 years
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text: If this large shark relied on the warmer waters to survive than it would likely be struggling today and assuming they had a lifespan of 20 – 40 years they would have to reproduce on a fairly consistent basis in order to maintain their existence, which means there would have to be numerous megalodons inhibiting the worlds oceans today.