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: kFWBoExplore: 2TpR6Explore: bn2oOExplore: nBfBFExplore: HgXgtExplore: pI9rbExplore: bD5YOExplore: 3CNCk