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: xEHe4Explore: CUcDfExplore: 5sFk3Explore: Y9bP4Explore: 0OePH2b7il.thietbicongnghieptn.comjrb9.ajstienda.comExplore: 8bloz