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Ancient Earth Files
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How the giant megalodon starved itself

that colossal ancient shark met its end not from space rocks, but from going hungry

By Smartasaurus· 1 min read Curious

A sixty-foot shark with jaws that could crush a whale's skull…

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The short version
  • that colossal ancient shark met its end not from space rocks, but from going hungry
  • This dietary specialization, once a strength in abundance, became a fatal vulnerability when its prey dispersed.
  • Megalodon teeth, often several inches long, are the most common fossilized remains of the species.

Seventy feet long, with jaws that could crush a whale's skull, *Otodus megalodon* dominated ancient oceans. This apex predator, weighing upwards of 60 tons, cruised the warm, shallow seas for nearly 20 million years, a true leviathan among marine life.

The end of the Megalodon's reign, around 3.6 million years ago, was not a sudden catastrophe. New evidence suggests a slower, more insidious decline: a dwindling food supply. As oceans cooled and sea levels fluctuated, the large whales and seals that formed the Megalodon's primary diet migrated to colder, more productive waters. The massive shark, adapted to warmer environments, couldn't follow.

This dietary specialization, once a strength in abundance, became a fatal vulnerability when its prey dispersed. Moreover, the emergence of smaller, more agile predators like the Great White Shark meant increased competition for the remaining food resources closer to shore.

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Sources (2) — tap to view
  1. 1.Megalodon extinction and climate cooling (Nature Communications)
  2. 2.Great white competition with megalodon (Current Biology)
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