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No one can figure out how eels have sex - Lucy Cooke

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1,606 Questions Answered

TEDEd Animation

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From Ancient Greece to the 20th century, Aristotle, Freud, and numerous other scholars were all looking for the same thing: eel testicles. Freshwater eels could be found in rivers across Europe, but no one had ever seen them mate and no researcher could find eel eggs or identify their reproductive organs. So how do eels reproduce, and where do they do it? Lucy Cooke digs into the ancient mystery.

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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 Lucy Cooke
  • Director Anton Bogaty
  • Narrator Adrian Dannatt
  • Animator Anton Bogaty
  • Storyboard Artist Anton Bogaty
  • Sound Designer Jarrett Farkas
  • Music Jarrett Farkas
  • Director of Production Gerta Xhelo
  • Editorial Director Alex Rosenthal
  • Producer Bethany Cutmore-Scott
  • Editorial Producer Dan Kwartler
  • Script Editor Dan Kwartler
  • Fact-Checker Eden Girma
  • Special Thanks Shameka Williams

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