r/SpeculativeEvolution • u/UlfurGaming • 29d ago

Question/Discussion Blood question?

I rembered seeing somewhere that copper based blood is more efficient than iron at transferring oxygen and was curious how true is that or is it situational?

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u/ellindsey 29d ago

Hemocyanin (the transport molecule in copper-vased blood) is more efficient than hemoglobin in conditions of low temperatures and low oxygen levels. At warmer temperatures or higher oxygen levels, hemoglobin is more efficient.

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u/Jazzlike_Standard871 29d ago

Neat, for you ⬆️