Anyone who has spent time watching Discovery Channel’s “Shark Week” knows how frightening sharks can be when biting into their prey. Their jaws are not attached their their skull, allowing the jaws to come forwards and out in the process of biting (the lower jaw often coming up first to impale prey before the upper teeth crash down to do their dirty work). I have never seen any bite quite as grotesquely impressive as that of the goblin shark (Mitsukurina owstoni), though;