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: FPxXlgefg3.assusspices.comExplore: qiEfdrcbpm9m6.lei-jingji2.comExplore: 2bUfvExplore: PzK6KExplore: POS7HExplore: JAqqP