Lex Fridman Podcast #480 – Dave Hone: T-Rex, Dinosaurs, Extinction, Evolution, and Jurassic Park
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Sep 4, 2025 Dave Hone, a paleontologist and dinosaur expert, shares his insights on the T-Rex and other prehistoric giants. He discusses the fascinating dynamics of predator-prey relationships, revealing theories about ancient ecosystems. Hone also explores T-Rex's unique anatomy and movement, comparing it to modern predators. He delves into the group behaviors of dinosaurs, highlighting fossil evidence that challenges previous assumptions. Additionally, he connects paleontology with popular culture, emphasizing the need for accurate representations of these magnificent creatures.
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T. Rex Size And Presence
- T. rex was enormous: ~12 meters long, ~7 tons, and could swallow a human whole.
- Its size and massive skull make it one of Earth's most iconic terrestrial predators.
Skull Built For Crushing
- T. rex has a very robust, boxy skull and thick teeth built for crushing.
- The heavy skull and fused bones support extreme bite forces and bone-crushing feeding.
Foot Locking For Efficient Stride
- Tyrannosaurs lock foot bones into a diamond shape to create an energy-efficient, stable foot.
- This adaptation increases stride length and reduces energy cost per step for large bipeds.
