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Big Ideas

Tim Flannery and the mystery of Big Meg — why did the world's largest predator disappear?

Aug 28, 2024
Tim Flannery, a climate advocate and author, along with his daughter Emma, unite to unravel the mystery of Megalodon, the largest predator in history. They discuss its astonishing size—10 humans long and capable of a bite that could take out two people. Paleontologists Erich Fitzgerald and Cheng-Hsui Tsai enhance the conversation, exploring the Megalodon's extinction and its ecological significance. Insights about ancient marine ecosystems, the adaptability of modern whales, and the role of amateur fossil collectors add depth to this fascinating dive into prehistoric mysteries.
52:45

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Quick takeaways

  • Megalodon, the largest predator ever, dominated the oceanic food chain around 16 to 3 million years ago, showcasing a highly productive marine ecosystem.
  • The extinction of Megalodon was likely influenced by climate change and emerging competitors, serving as a warning for today's marine conservation efforts.

Deep dives

The Size and Power of Megalodon

Megalodon is recognized as the largest predator to have ever existed, measuring approximately 18 meters in length and weighing around 50 tons. Its enormous jaws, which could reach a width of three meters, were lined with 272 teeth, each measuring around 20 centimeters long. The creature's size and predatory capabilities positioned it atop the oceanic food chain roughly 16 to 3 million years ago, a time referred to as the 'lost Serengeti of the sea.' This era featured a diverse array of marine life, with Megalodon possibly preying on large marine mammals, illustrating its dominance in a world rich with potential prey.

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