TIL Moray Eels have a 2nd jaw inside their jaw! Posted on February 4, 2011February 4, 2011 by Dusty Reagan The Moray Eel’s 2nd jaw is called a pharyngeal jaw. They use it to pull down prey captured in the front of their mouth, further down into their esophagus. It’s creepy, and it’s true! Check out this video of the jaw in action.