Question

Which animal's blood is blue in Colour?

Answer 1

Blood is a body fluid found in humans and other animals that transports metabolic waste products away from cells while also delivering necessary substances such as nutrients and oxygen. It is made up of blood cells suspended in blood plasma in vertebrates.

Complete answer:
Human blood is red because hemoglobin, which transports oxygen and is carried in the blood, is iron-rich and red in colour. Blue blood is found in octopuses and horseshoe crabs. This is due to the fact that hemocyanin, the protein that transports oxygen in their blood, is blue.

Octopuses have three hearts, which is due in part to their blue blood. Blood is pumped through the gills, where it picks up oxygen, by their two peripheral hearts. The oxygenated blood is then circulated to the rest of the body, providing energy to organs and muscles.

According to the storey, Vulcan blood is green, and this is presumably because the stuff that carries oxygen in the Vulcan’s blood is green. Our blood, on the other hand, is red. When the arteries carry it in its oxygen-rich state throughout the body, it turns bright red. When it rushes back to the heart through the veins, it's still red, but darker now.

Thus, Blue blood is known to exist in the Antarctic octopus (Cirro Octopus Antarctica). This is due to a copper-rich protein in its blood.

Note: The veins in your body may appear deep blue or even purple from the surface of your skin. But that has nothing to do with the colour of the blood in your veins. It's true that your blood is red. The blue colour of your veins has less to do with the colour of the blood and more to do with how your eyes absorb and see colour.