Luxe Beat Magazine has published our most recent Third Age Expeditions column about octopus called, “Realm of the Giant Pacific Octopus.”
Three Hearts, Nine Brains, & Blue Blood?
Giant Pacific octopus are about 90 percent soft-bodied muscle except for two small plates anchoring their heads, together with a beak used to grasp and bite prey They possess three hearts and nine brains. Two smaller hearts pump their blue blood to the gills, while a larger third heart circulates blood to the rest of the body. One central brain controls their nervous system and there is a large ganglion of nerve cells at the base of each of their eight arms, which act like independent brains that work both independently and together to coordinate movement. Their blue blood contains a copper-rich protein called hemocyanin which is more efficient than hemoglobin in cold ocean environments and improves oxygen flow.
Here is a link to the story: here