Did you know that octopuses have three hearts? Two of the hearts pump blood to the gills, where it picks up oxygen, while the third heart pumps the oxygenated blood to the rest of the body. What’s even more interesting is that when an octopus swims, the heart that delivers blood to the body actually stops beating, which is why they prefer to crawl rather than swim!
Did you know that octopuses have three hearts? Two of the hearts pump blood to the gills, where it picks up oxygen, while the third heart pumps the oxygenated blood to the rest of the body. What’s even more interesting is that when an octopus swims, the heart that delivers blood to the body actually stops beating, which is why they prefer to crawl rather than swim!