Well, the vampire squid, with the scientific name Vampyroteuthis infernalis, is, interestingly, not a squid or an octopus (although it has some characteristics of the other two animals).

Another hundred and 50 meters down, we meet the vampire squid. It has bioluminescent organs ... This thrilling deep-sea fish was voted the world's ugliest animal by the Ugly Animal Preservation ...

One such specimen MBARI scientists spotted was the vampire squid (Vampyroteuthis infernalis). Animals that live in the twilight zone have specialized adaptations for survival deep below the surface of ...