Did early humans have copper-based blood that was blue?

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No, it's a myth. You're confusing humans with crabs.

edit: And next time try to find a credible source first.
 
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well, that's why i put it on GD, else it would have gone in bilogy thing.
 
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It's a fun site to read through, though. Imagine, copper-based blood, but able to interbreed with hemoglobin based humans! Just like Spock!
 
Stop me if I'm wrong, but isn't blood water based?
 
matthyaouw said:
Stop me if I'm wrong, but isn't blood water based?
you see, i think blood is iron based so it is red, at least that's what they taught in my classes (year nine of a grammar school:approve: ). but they also told that blood has plasma which is much of water.
 
matthyaouw said:
Stop me if I'm wrong, but isn't blood water based?
"Dammit Jim, I'm a Physicist, not a Chemist!"
 
matthyaouw said:
Stop me if I'm wrong, but isn't blood water based?
Duh guys, he knew that, can'tcha catch a joke? He was skillfully pointing out that guy's error. That blood is not hemoglobin-based, blood is not copper-based, blood is water based.