It's about the viperfish (Chauliodus sloani), also known ... Moreover, the ability to dislocate its jaw and expand its stomach allows this fish to swallow prey up to 63% of its own length.

The viperfish (pictured above) is a fierce predator ... It may also be used to communicate with other stoplight loosejaws. The fish's jaw and neck are hinged so its mouth can open mouth wide and ...