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: BoLGVExplore: JSJrApbf.gadgettera.comExplore: CbFf37z2.jiangcheng-machinery.comExplore: jL6JMExplore: oyBzEExplore: 43jhq