Non human blood is blue. - Not even those of the royals. xD
Invertebrates indeed do rely on a different oxygen carrier called Hemocyanin, which turns blue in its oxidized form. - Just adding some additional interesting facts. :)
Thanks for your cool post!
Best,
mountain.phil28
That's pretty cool, I didn't know about hemocyanin! I'd never heard of that! :) Love learning something enw!