10 Animals That Bleed Blue
Turns out blue bloods are pretty gross even without the inbreeding. Without iron-rich hemoglobin turning their blood a recognizable red, these animals have had to make do with copper-based hemocyanin.
2. Pillbug (Roly-Poly)
6. Emperor Scorpion
9. Horseshoe Crab
BONUS! Two Animals With Green Blood