

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. 🤓
I’m just little-o; the big O is a life goal*
^* ^pron: ^a ^la ^futbol ^commentator