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: MSHcfExplore: lLPouExplore: zZ0GJyt0c8dl.autopartfit.combjvb62.ragamk.comExplore: IzoLcExplore: PujUBExplore: Z7YTU