The hagfish is a slime-emitting ocean-dweller ... and a terrifying pit of a mouth that's lined with rows of razor-sharp teeth. Explore Subscribe Newsletters Content Licensing Our Partners Terms ...

Understanding the burrowing activities of hagfish could lead to increased knowledge of sediment turnover in marine benthic habitats, new insights into the reproductive behavior of hagfish or even ...

A hagfish fossil found in Illinois ... While they don't have traditional jaws, hagfishes have two tooth-like plates made of keratin that can pinch together to tear off food. But tooth-like rasps are ...