Did you know….. Lobster’s blood is colorless but when its exposed to oxygen its turn BLUE. Like Lobsters Snails, Octopi, Spiders and Crustaceans and some Insects also have BLUE blood due to the presence of hemocyanin (copper rich protein) which contains copper. The reason for the blue color is, unlike humans, the oxygen carrying portion is copper based and not iron based. In contrast, vertebrates and many other animals have red blood... [read more]