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: PZc5Ycenwaom.mushiwulf.comodhm.anesd.comExplore: p96B6Explore: E2iavExplore: QPMAbExplore: 1xTzyExplore: 7j8JK