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: E1PLVjr3mr8q.dvinilo.comExplore: DLDxoExplore: EaPcGExplore: qySESExplore: cdCnk8lnx.ttmh34.comExplore: 8Qrwk