Octopuses have three functioning hearts. Two of the hearts work exclusively to move blood to the gills, while the third pumps blood through the rest of the body. Rather than iron-based blood, their blood is copper-based, which is more efficient at transporting oxygen at low temperatures and makes their blood blue in color.Octopuses are solitary creatures excellent at camouflaging and concealing themselves. They are about 90 percent muscle, and because they lack bones, they can fit through very small spaces. Their skin contains cells called chromatophores that allow the octopus to change color and pattern. They are believed to be quite intelligent—capable of learning, using tools, and remembering locations.There is tremendous range in the size of octopus species found in U.S. waters. The giant Pacific octopus (Enteroctopus dofleini), found off the Pacific coast of the United States from California to Alaska, is the largest octopus species in the world. It has an arm span that can reach 14 feet (four meters). The common octopus (Octopus vulgaris), found along the east coast of the U.S., is much smaller, growing up to about three feet (0.9 meters). The red octopus (Octopus rubescens), found along the Pacific coast, grows to about 20 inches (51 centimeters).
How Many Hearts Do The Octopus Have?
Most people don’t know it, but the Octopus has three hearts. They have one that pumps blood through the gills for each side of the body. The third one is responsible for pumping the blood through the rest of the body. You may not notice unless you take a very good look at the body of these creatures that they have gills. This organ helps them with breathing as water is circulated through them.
Poison And Nervus System
Another gland that they have is to create and hold their venom. That is what they inject into their prey to immobilize it. Without this process, they would have a hard time getting their prey to be still. They rely upon their powerful beak to be able to break the shells of their prey. When they can’t, they have a very powerful sucking ability to take it out of the shell.
The nervous system for an Octopus is controlled by the brain, and it is very complex in nature. What is very interesting is that they don’t have any organs for hearing. The octopus is an animal that is deaf. They have a sac where the ink is produced when they need to release it and escape from danger.
There is actually a gland in the body that creates it. The amount of ink depends on the species of Octopus and the overall size.
There are several different types of movement that the Octopus is able to enjoy due to its overall anatomy. They are often seen walking around at a leisurely pace. They can also crawl by bending the arms at different angles.
They will swim rapidly to avoid danger or to be able to capture their own prey. They also have jet propulsion when they need to flee due to impending dangers so they can go extremely fast.
The vision for an Octopus is very good and they use it to help them move around in the water. They also rely upon their sight to keep a good lookout for various types of predators.