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How a single-celled organism almost wiped out life on Earth - Anusuya Willis

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TEDEd Animation

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There’s an organism that changed the world. It caused the first mass extinction in Earth’s history … and also paved the way for complex life. How? Anusuya Willis explains how cyanobacteria, simple organisms that don’t even have nuclei or any other organelles, wrote a pivotal chapter in the story of life on Earth.

The composition of the Earth’s atmosphere has changed throughout the Earth’s history. How does the composition of the atmosphere affect Earth's climate?

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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 Anusuya Willis
  • Script Editor Eleanor Nelsen
  • Director Jeremy Jusay
  • Animator Chris Muller, Irving George
  • Narrator Julianna Zarzycki

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