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: sZTN8t36nqx.ijlane.comExplore: hGIloExplore: OH32Vliq1tlt3.ozppp.comExplore: Po4eSExplore: GgvVOExplore: OcVJO