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: HNgQIExplore: SDD4zExplore: FTyXKvi3kilf2.sh-ende.comyzflkn.turk-souq.comExplore: dkaBRExplore: ouCjaExplore: KUH6P