Terrifying Deep Sea Creatures You Have To See To Believe

How scary are they? Read on to find out! When you swim in the ocean, you obviously don’t think about what's lurking below the waves.

The deep sea has its fair share of scary, mysterious-looking creatures so creepy that they could have starred in any horror flick.

Here are some of the scariest creatures that you’ll find under the sea, if you know where to look:

Giant Isopod



Who wouldn’t be scared of a giant cockroach? The giant isopod, known scientifically as Bathynomus giganteus, is without a doubt one of the strangest creatures found in the deep sea. When threatened, they can roll themselves into a tight ball, protected by their strong, armor-plated shells. The giant isopod can grow to a length of more than 16 inches, which makes it one of the largest members of the crustacean family. 




Known scientifically as Anoplogaster cornuta and appropriately named after their enormous fang-like teeth, the dreaded fangtooth is actually one of the most adaptable and endurable creatures on Earth. Although it may look like a monster, the fish is harmless to humans and it only grows to a size of about 7.1 inches in length. 



The viperfish is one of the most unusual-looking fish in the deep sea. It is also one of the most popular and well-known species. They grow to lengths of 30-60 cm. Viper fish are one of the fiercest predators living in the deep ocean. They attract their prey with a “fishing lure” on top of their head. They live in the deep ocean where it is so dark they are invisible to other fish when they are still in the water. The unusually large teeth of the viperfish help it to grab hold of its prey at it hunts in the darkness.   

Japanese Spider Crab



One of the most frightening creatures around is the Giant Spider Crab, also known as the Japanese spider. The giant spider crab is the largest known species of crab and may live up to 100 years. These things can have a leg span up to 12 feet, and can weigh up to 42 pounds.  The Japanese spider crab has eight legs and two big feeding arms, and generally lives under water but has been found on land.

Marine Hatchetfish


You probably won't have these guys in your aquarium at home. These ghostly creatures are Marine hatchetfish. Deep sea hatchetfish are so named because of unique shape of the body that looks like a hatchet. They are split into 40 different species, their sizes range from 2.8 cm to 12cm long. They also carry with them an ingenious strategy for avoiding detection by predators, a custom lightshow that keeps them hidden in plain sight, at whatever depths they choose to roam. 

Goblin Shark


The goblin shark is a rarely seen, slow-swimming shark, sometimes referred to as vampire sharks. It is usually between 10 and 13 feet long when mature. This shark's snout is quite unusual; it is long, flat and very pointed. The jaws can protrude during eating, giving the goblin a very unusual look. The goblin shark has rounded fins and a long, asymmetrical tail fin. Its jaws can project open quickly in order to catch prey. 

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