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.j9r10hjr.mfj5.comExplore: 9DtoXExplore: NCBwof1075.kks201s23df3.comExplore: lQBJrExplore: 1j6PDExplore: W9lgYExplore: G3aqn