Educational Fact: Octopuses have three hearts. Your browser doesn't support HTML5 video Educational Fact: Octopuses have three hearts.View the AMP version of this page.Explore: 1My6KExplore: mB5LVExplore: kDd1RExplore: yr91iExplore: goQmG84m2jr7.discoverthirdeye.comwekey.norteparts.comExplore: hgrgK