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Why do blood types matter? - Natalie S. Hodge

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TEDEd Animation

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It’s often said that despite humanity’s many conflicts, we all bleed the same blood. It’s a nice thought, but not quite accurate. In fact, our blood comes in a few different varieties. Natalie S. Hodge defines the four major blood types and sheds light on why some bloods can mix while others cannot.

There have been books written about how blood type affects personality or body shape. Knowing that blood type is determined by antigens on erythrocytes, are these claims scientifically valid?

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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 Natalie S. Hodge
  • Script Editor Alex Gendler
  • Director Brad Purnell
  • Narrator Addison Anderson

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