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: 6ylE9Explore: Zkg9VExplore: nPLPiExplore: Q2XmvExplore: swB4YExplore: o4QH5Explore: WWNSsExplore: eIUKy