Why Do We Have Different Blood Types? A Look at Evolution and

We naturally tend to distinguish ourselves by our blood types. And doing so is only natural: your blood type is an important feature of who you are and an important factor in dictating what blood product you’re best suited to donate — and, consequently, what type of patients you might be supporting.

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Why We Have Different Blood Types?

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Why do humans have different blood groups from evolutionary point of view? - Quora

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