This worm may not look like much, but it is capable of some pretty incredible feats. It can burrow down into the sand, growing up to ten feet long, and when it attacks a fish to eat, it generates so much force that it can split the fish in two.

In order to eat and digest the fish, the Bobbit worm also injects a toxin to help break it down.

This fish is just as scary as it looks. The Pacific Viperfish actually has teeth so long that it can’t even close its mouth.

Although they only grow up to 8 inches long, they are superb hunters, luring in their prey with bioluminescent stomachs down at around 13,000 feet below the surface of the ocean.

This is one of those fish that seem too terrifying to be real. However, they are very real.

The anglerfish lurks at the deep dark depths of the oceans and use a glowing lure on the tops of their head to beckon their prey.

The goblin shark is the stuff of nightmares. Luckily for us, they live so deep down in the ocean that they rarely come into contact with humans.

However, if you are unlucky enough to meet a goblin shark in the ocean, beware of their teeth. They are actually able to point their nail-like teeth forward with a protruding jaw.

This terrifying fish has the largest tooth-to-body size ratio of any other fish.

Luckily, the fangtooth fish lives at depths of around 16,500 feet and only grow to about 6 inches long.

Still, I wouldn’t want to run into one of these guys when they are hungry.

The sarcastic fringehead fish is anything but sarcastic when it opens its mouth and challenges a rival fish in its territory. These fish actually engage in mouth wrestling to protect their turf and keep rival fish away.

All I can say is that I would gladly swim away if one of these guys challenged me.

Although the wolffish seems to have teeth growing in random places with no clear purpose, they play a very important role in the fish’s diet.

The wolffish use their funky teeth to crush mollusks, other shellfish, and sea urchins. They live at around 2,500 feet below the surface and tend to have a temperamental reputation.

These “monsters of the deep” have been talked about since the first sailors set sail across the ocean – and for good reason. Giant squids can grow up to 60 feet long and are considered the largest mollusks in the ocean.

Because of their elusive nature, giant squids were only recently caught on film.

These echinoderms are found along the seafloor all across the world. They come in all sorts of shapes, sizes, and colors.

When attacked, they can let loose a tangled mess of internal organs from their anus to distract and confuse predators. (What a talent!)

Luckily for them, they can regenerate these organs later.

This interesting crab was found off the coast of Easter Island. It’s unique because it uses the hairs on its claws to remove the toxins from the food that it eats.

Unfortunately for these guys, it is likely that they are blind, so they have to get creative with their hunting tactics.

This monster fish is actually the largest bony fish on the planet. The Mola Mola can weigh up to 5,000 pounds and loves to snack on jellyfish.

Amazingly, this giant fish gets around the ocean without the use of a tail!

These little guys are one of the most heat-tolerant animals on the entire planet. The Pompeii worm lives near hydrothermal vents under the ocean that are super-hot.

It’s believed that the fleece-like bacteria that live on their body give them the insulation needed to withstand extreme temperatures.

This incredible jellyfish, like most others, actually has no respiratory, central nervous, circulatory, or digestive system. However, that doesn’t stop it from living its best life.

The Atolla jellyfish can even emit a display of lights and colors from its body which can be seen from up to 300 feet away.

This ancient fish was thought to have gone extinct back in the Cretaceous period. However, after one was caught off the coast of South Africa in 1938, we realized that it still lives among us…but just barely.

The Coelacanth is considered one of the most endangered fish on the planet.

These aptly named crabs are considered to be the largest arthropods on the planet. They can measure as long as 12 feet from one claw tip to another.

They live exclusively off the deep coasts of Japan.

This strange fish is actually a better walker than it is a swimmer. It uses its flattened pectoral and pelvic fins to shuffle along the ocean floor.

To lure prey into its big-lipped mouth, the red-lipped batfish uses a retractable appendage on its forehead.

This beautiful little creature, believe it or not, is actually a type of sea snail. And despite its sweet and heavenly name, the sea angel is an accomplished killer.

And get this, it snacks primarily on other sea snails.

Despite its tiny size, the water bear is one of the most resilient creatures that we know of. It can withstand extreme temperatures, from -457 to 357 degrees Fahrenheit, endure major radiation, and even survive in the vacuum of space.

I think it’s safe to say that this little bear is a big deal.

This incredible fish has some of the best camouflaging capabilities in the ocean. It can change colors to blend into its surroundings (mostly coral reefs) and uses its stripes, bumps, spots, and warts to add to the illusion.

The giant frogfish would smoke all of us in a game of hide and seek.

Although this may not be the most attractive-looking fish, it is certainly still cool.

The blobfish lacks a swim bladder, which most fish have to help them float, but makes up for it with its squishy, blob-like shape. That’s what allows them to float more easily at the bottom of the ocean.

Octopuses may be one of the most incredible animals in the ocean. They can change their color and texture in a flash and are super intelligent. It has also been suggested that these cephalopods actually see light without using their eyes.

They use their skin instead.

These beautiful rays swim along the coral reefs in Australia looking for shellfish to snack on.

They have earned the nickname “banjo shark” due to their round shape and unique markings along their backs.

These incredible creatures live in some of the most desolate parts of the ocean. They live down deep where the pressure is intense, the temperatures are freezing, and there is zero light.

However, giant tube worms also enjoy the other end of the spectrum, living near hydrothermal vents that exude superheated water filled with toxic chemicals.

These beautiful jellies are constantly putting on a free light show.

And believe it or not, the lights on their bodies aren’t due to bioluminescence but by moving cilia. This is what propels the comb jelly through the ocean.