• I have eaten thousands of crawfish but I have never seen the blood. I can tell you that it isn't some weird color like pink or neon green.
  • Pale yellow when deoxigenated, deep blue when oxygenated. (Crayfish have haemocyanin to carry oxygen, and not haemoglobin.)
  • It contains hemocyanin, a copper-based protein that turns blue in color when oxygenated, instead of the iron-based hemoglobin in red blood cells found in vertebrates, thus giving hemolymph a blue-green color rather than the red color of vertebrate blood. By:

Copyright 2018, Wired Ivy, LLC

Answerbag | Terms of Service | Privacy Policy