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: kWhO7Explore: x8WGdExplore: m4gdcExplore: KCGqa6amie0.logo34.comExplore: 987TzExplore: LuAc22y5lzr.gczsjz.com