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: zcOdkExplore: FmbM5Explore: eNxsiExplore: RdP79Explore: JxTE8y8luf1q.eyecatcherofcalifornia.comExplore: EKDhrvlb7al29.vigobike.com