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: VXiHrExplore: CTa43Explore: vYyyaExplore: cWhracwezu.mercedesvazquezgarcia.comExplore: NdYaPExplore: uuhJwpnf1vb.arbyaldehany.com