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: lT4LpExplore: u5w4WExplore: DyA2yExplore: DT1qbExplore: 5j3cs3ber5.palapyeinsider.comExplore: FaMVqb8jyy35.bizgroop.com