That glass of water in your hand is dinosaur pee, apparently. Not like it's unfiltered, but a science YouTube video posted this week raises the interesting tidbit that, since dinosaurs were around for 186 million years and water molecules are everlasting, it's a foregone conclusion that every drop of water on the planet passed through the prehistoric species once upon a time. "While most of the water molecules in your 8 ounce glass have never been drunk by another human, almost every single molecule has been drunk by a dinosaur," the video by CuriousMinds says. "So drink up and enjoy...