FISH living in the deep oceans have a rather unique shape. In fact, deep sea fish are often used as a reference for horror movies due to their scary shape.
These fish have very large teeth, glowing bodies in the dark, and protruding eyeballs. But why do they have such a scary look, even if it is very dark in the deep sea and almost little light gets in, so there is no need for a scary look to scare away other predators.
The strange appearance of deep-sea fish is largely a reflection of the extreme environment in which they live. Much of the deep ocean, which begins 656 feet (200 meters) below the surface, has a high-pressure system, little light, and little food. It’s also much colder than the rest of the ocean, with an average temperature just above freezing at 39 degrees Fahrenheit (4 degrees Celsius).
“The deep ocean is a really tough place to make a living, so a lot of animals really have to adapt specifically to survive in that environment,” said Mary McCarthy, a fish biologist at the Monterey Bay Aquarium in California, as reported by Live Science.
Without much of a chance to find food, deep-sea fish have evolved traits that help them catch prey, one of the most terrifying of which is massive jaws. For example, Sloane’s viper (Chauliodus sloani) has fangs so large that it cannot close its mouth without piercing its brain.
These razor-sharp teeth are also transparent, meaning they can hide their weapons from prey. Another deep-sea fish, the pelican eel (Eurypharynx pelecanoides) has a mouth that, when elongated, fills most of its body so that they can catch and swallow the large fish they find in this deep-sea food desert .
Predators of the abyss have a secret weapon that makes them prey magnets: bioluminescence, due to the ability to generate their own light. For example, the female black devil, or deep-sea anglerfish, a type of fish that appears in the 2003 computer-animated film “Finding Nemo.”
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