This horrifying Palaeozoic fish had a buzz saw for a face

Whoa, check this thing out. It's almost impossible to believe that such a creature ever existed, but after years of speculation and puzzling over the fossil evidence, researchers from Idaho State University finally figured out how to piece it all together. The end result is this: Helicoprion, an ancient carnivorous… » 2/27/13 7:40am 2/27/13 7:40am