I recently learned that octopuses have three hearts! Two pump blood to their gills, while the third pumps it to the rest of their body. When they swim, the heart that delivers blood to the body actually stops beating, which is why they prefer to crawl rather than swim. Nature is full of fascinating surprises! What about you—do you have any random facts to share?
I recently learned that octopuses have three hearts! Two pump blood to their gills, while the third pumps it to the rest of their body. When they swim, the heart that delivers blood to the body actually stops beating, which is why they prefer to crawl rather than swim. Nature is full of fascinating surprises! What about you—do you have any random facts to share?