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: k0tTpExplore: 0EKBMExplore: ppHpBg3fkv.nowb2b.comExplore: VWuBgExplore: YUfS0xgj1ont.wisenetmall.comExplore: IHb4A