Question

which animal blood is blue in colour​

Answer 1

Answer:

Society elites aren't the only blue bloods. Several species of octopus have blue, rather than red, fluid running through their veins. The blue comes from a copper-rich protein called hemocyanin, which carries oxygen from the lungs to the bloodstream and then to the cells of the octopus's body.

Explanation:

Answer 2

Which animal has blue blood ?

Ans : Octopus