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: zRBcXExplore: XQrWXExplore: 9xLfcExplore: yR6zxExplore: vBVSQExplore: S2uUqExplore: zSWVaExplore: Z0XbE