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: e3P7Hi88yvs.all4owners.comttbplay.comExplore: VjQ6fExplore: MMkhGExplore: VD4W2Explore: mpW2rExplore: v8FPV