Which animal has 3 hearts and 9 brain and blue blood? Octopuses have blue blood, three hearts and a doughnut-shaped brain. But these aren’t even the most unusual things about them!
What animal has 8 hearts? But their circulatory system is just as unusual. The octopus has multiple hearts, and that fact can reveal secrets about their evolutionary history while also informing our understanding of how they manipulate their environments. Here are all the facts you need to know about an octopus’ hearts.
Why do octopus have 3 hearts 9 brains and blue blood? But the octopus has a copper-based protein in its body called hemocyanin, due to which the blood turns blue. Hemocyanin does not blend with oxygen as easily as hemoglobin does. Because of this, two hearts pump blood through the gills, which get oxygen and blood, and the third heart pumps it throughout the body.
Do all octopus have 9 brains? In addition to a central brain located between the eyes, octopuses have separate “mini-brains” at the base of each of their eight tentacles. Unlike most creatures, octopuses have nine brains, and they put them to incredibly adept use.