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Jellyfish predate dinosaurs. How have they survived so long? - David Gruber

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TEDEd Animation

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Some are longer than a blue whale. Others are barely larger than a grain of sand. One species unleashes one of the most deadly venoms on earth; another holds a secret that’s behind some of the greatest breakthroughs in biology. They’ve inhabited the ocean for at least half a billion years, and they’re still flourishing. David Gruber investigates the secret powers of jellyfish.

Some jellyfish are nicknamed “immortal jellyfish” due to their ability to “age in reverse.” Describe how this feature works.

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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 David Gruber
  • Director Silvia Prietov
  • Script Editor Eleanor Nelsen
  • Producer Silvia Prietov
  • Art Director Silvia Prietov
  • Designer Silvia Prietov
  • Character Designer Silvia Prietov
  • Animator William Cifuentes, Kang Gy Yeon
  • Senior Animator William Cifuentes
  • Storyboard Artist William Cifuentes
  • Editor Julian Andrés Sánchez
  • Compositor Julian Andrés Sánchez
  • Composer Dario Alejandro Torres
  • Sound Designer Alejandro Loaiza
  • Associate Producer Jessica Ruby
  • Content Producer Gerta Xhelo
  • Editorial Producer Alex Rosenthal
  • Narrator Addison Anderson

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