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What really killed the dinosaurs? (It wasn’t just the asteroid) - Sean P. S. Gulick

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2,974 Questions Answered

TEDEd Animation

Let’s Begin…

Sixty-six million years ago, near what’s now the Yucatán Peninsula, a juvenile sauropod feasted on horsetail plants on a riverbank. Earth was a tropical planet. Behemoth and tiny dinosaurs alike soared its skies and roamed its lands while reptiles and tentacled ammonites swept its seas. But, in an instant, everything would change. Sean P. S. Gulick details one of Earth's most devastating periods.

About TED-Ed Animations

TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »

Meet The Creators

  • Educator Sean P. S. Gulick
  • Director Jeff Le Bars, Jet Propulsion
  • Narrator Adrian Dannatt
  • Music Stephen LaRosa
  • Sound Designer and Mixer Weston Fonger
  • Director of Production Gerta Xhelo
  • Producer Sazia Afrin
  • Editorial Director Alex Rosenthal
  • Editorial Producer Cella Wright
  • Fact-Checker Paige Downie

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