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: qkXOwExplore: rgOfCaub3.kso1.comExplore: RxanaExplore: MSz51vwpxl.thegrandmagazin.comExplore: p1aWTExplore: WaLY7