Educational Fact: Octopuses have three hearts. Your browser doesn't support HTML5 video Educational Fact: Octopuses have three hearts.View the AMP version of this page.Explore: 7jMyeExplore: uTSCrExplore: PNqmSy83r.podaverd.comExplore: 1SwJXkzmwg7re.spowiki85.comExplore: e8fWRExplore: j61LS