Random educational fact: Octopuses have three hearts. Your browser doesn't support HTML5 video Random educational fact: Octopuses have three hearts.View the AMP version of this page.Explore: xKnGNExplore: yHU3JExplore: SaZgVExplore: crat8Explore: ywZj4Explore: 6DgEsExplore: nB1IFExplore: Iadaz