Mind & Body

Why Are There Different Blood Types?

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You probably know that people have different blood types, and that not everybody can receive blood donations from everybody else. If you've got type A, you can donate to A or AB, and if you've got type O you can donate to anyone—but only receive from other type O donors. But why? And what do blood types even mean? Watch the video below to learn more.

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Why We Have Different Blood Types

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Written by Curiosity Staff April 27, 2017