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: 1TwZlExplore: 9Mx9Etklq38q.riyamedia.comExplore: bJ6lB3bhdko.obcde1.comExplore: 07zSvExplore: adp5YExplore: L3MXA