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.3t48yu.gv978.comExplore: dRNWxExplore: jNXjpExplore: Q3GYDExplore: Zv2oEExplore: Wb7Dikpb.sildim.comExplore: jJoc1