Cephalopod blood is blue from the copper-rich hemocyanin instead of hemoglobin, which helps them endure the incredible cold of the abyss.
Also, the Prasinohaema skinks of the island of New Guinea are green-blooded from the high concentrations of biliverdin, a toxic green bile pigment that outshines their hemoglobins’ iron. 🤓
If it’s blood, it’s red for the same reason, though
Unsure why the downvote, I think you are technically right. Oxidation makes blood and rust red.
Because blood is red regardless of oxidation.
Human blood is.
Cephalopod blood is blue from the copper-rich hemocyanin instead of hemoglobin, which helps them endure the incredible cold of the abyss.
Also, the Prasinohaema skinks of the island of New Guinea are green-blooded from the high concentrations of biliverdin, a toxic green bile pigment that outshines their hemoglobins’ iron. 🤓
TIL