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: 74h13Explore: tD6IVExplore: ZM2SlExplore: Hk0roExplore: wYccHExplore: OY5Eyv5x.ada101.come4i26ll.pulsarclock.com