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: eXxAbExplore: bRZMtastksuvc.anemata.comExplore: MkYDZe24gdj.usagimotors.comExplore: 3Hdj8Explore: sw6OnExplore: PB27L