A blue-blooded lobster

Never heard of a blue lobster

Researchers at the University of Connecticut found that the blue coloring occurs when lobsters produce an excessive amount of protein because of a genetic mutation. But if blue lobsters are cooked like their red brethren, they too turn red.

Update: No big deal says this man from Canada, who surgeons found had green blood! There is a limerick somewhere in here about the man from Vancouver.. but I can't write limericks!