Trilobites: How Three Friends Proved That Jellyfish Can Sleep What started as a midnight excursion of curious graduate students turned into a study with implications for basic questions about sleep. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:In Turkey, Keeping Alive a Language of WhistlesI’m a Veteran Without PTSD. I Used to Think Something Was Wrong With Me.Space weather WARNING: Solar storms can INTENSIFY cyclonesEarthquake BREAKTHROUGH: Scientists just discovered how to predict a MEGAQUAKENASA Mars DISCOVERY: Curiosity rover finds PROOF of 'significant amounts of water'Stephen Hawking was RIGHT: Scientists create black hole to prove theory was TRUE