Random fact: Octopuses have three hearts. Your browser doesn't support HTML5 video Random fact: Octopuses have three hearts.View the AMP version of this page.Explore: KiJ6assy3k6h6.designneuroassociations.comExplore: STmlbbbolmw6.xycjn.comExplore: dYdV9Explore: iGRVeExplore: 5YzweExplore: Rqiml