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.z2t4.2556n.comExplore: On4kAExplore: anuM3Explore: G2ZR6gws4fku.eeuu-cuba.comExplore: RxcREExplore: mGG4vExplore: PRS9E