Unnatural Animals Live In Unnatural Environment -The Great Cuttlefish

1. Cuttlefish have not one, not two, but three hearts! Two hearts are used to pump blood to the cuttlefish’s large gills, and the third heart is used to circulate oxygenated blood to the rest of the body. Speaking of cuttlefish blood, even that’s interesting. According scalpmastersri to New World Encyclopedia, “The blood of a cuttlefish is an unusual shade of green-blue because it uses the copper-containing protein hemocyanin to carry oxygen instead of the red iron-containing protein hemoglobin that is found i…