Human blood types have deep evolutionary roots ScienceNews: A new analysis suggests that the A, B and O blood types in people evolved at least 20 million years ago in a common ancestor of humans and ...
Red blood is the exception, not the rule. Evolution has painted it green, purple and white in animals that push physiology ...
Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...
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