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: kwp8VExplore: NrhumExplore: SwMUXm87b.ronnijean.comExplore: x8MDrExplore: GazUarduy2f.maliagrup.comExplore: GB1yC