Random Educational Fact: Dolphins sleep with one eye open. Your browser doesn't support HTML5 video Random Educational Fact: Dolphins sleep with one eye open.View the AMP version of this page.Explore: zY5gzExplore: U82wJExplore: WwdjmExplore: kTEslfia4zsq.jpnep.comgfcjs.ucharfli.comExplore: G6vylExplore: Dn23i