![]() ![]() Hemocyanin is less efficient that hemoglobin in regular conditions, but it is much more efficient at transporting oxygen in cold conditions and under low oxygen pressure than hemoglobin. Hemocyanin lacks iron, which makes human blood red, which means that the blood of an octopus is actually colorless and turns blue when exposed to air. Unlike many animals, the blood of an octopus contains the protein hemocyanin, instead of hemoglobin, for transporting oxygen. Many people believe that the blood of an octopus is blue. These two branchial hearts support the main heart, known as a systemic heart, which pumps oxygenated blood through the rest of the body. Two of these hearts are known as branchial heart, which are located at the base of the gills, and pump the blood through each of the octopuses gills. Although these species have some differences, all octopuses have the same number of hearts.Īn octopus has three hearts. There are approximately 300 different species of octopuses and they can be found throughout most of the world ocean’s. ![]() They are classified as a cephalopod, along with the squid and cuttlefish. An octopus is a marine animal best known for their flexibility, and 8 arms that usually have a number of suction cups.
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