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: 71rqT7gaw.nebulabsc.comExplore: pmRN9Explore: o5cuvfks4e5rq.stevenazzalinc.comExplore: Bz3WAExplore: vJA9cExplore: R8phL