Viperfish
According to SeaSky, the viperfish is one of the most unusual-looking fish out there. Viperfish have a very large mouth with sharp teeth that are like fangs (imagine swimming into that!).
Their teeth are actually so big that they don’t even fit inside their mouths, and are used to impale victims.
The viperfish has a long spine with a photophore at the end, which is an organ that looks like a light. They use this to lure victims close to them before killing them with their fangs.
