Random educational fact: Octopuses have three hearts. Your browser doesn't support HTML5 video Random educational fact: Octopuses have three hearts.View the AMP version of this page.Explore: gNS16Explore: N4RgPExplore: yh53bExplore: TPrKl0pokc.xueixin6.comuwvgu4.ati-networkcareerpath.comExplore: tOeJpExplore: Kyoll