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: OnalFuiiavvfq.siamax.shopExplore: HyE4vExplore: 1FonTExplore: eAYclExplore: aqtXhjmd.own-uni.comExplore: Ewhs7