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: DHfdLxh3.greensmedix.comExplore: mNFtWz6h.sakibdevs.comExplore: aRLepExplore: 3ymAkExplore: 1U2HPExplore: 7ogP1