Our oceans are full of fascinating animals. Some of them are big, some are small, and some are pretty terrifying. We know more about outer space than the deepest ocean. That means there are a lot of unknown animals living in the deeps.
Every year, scientist discover new animals living in the ocean. Some of them live where the pressure is incredible and others live where there is no light present. This means they have to adapt. A lot of them look like real monsters.
Old stories are full of sea creatures with strange appearances. We assume most of them are made up, but some may be based on real creatures that live deep under water. Some that have never been seen before.
Here are 35 terrifying creatures that live in the ocean. They are all monstrous in appearance, but some aren’t as scary as they look. Some are a threat to humans and some aren’t. All of them are creepy.
The tongue-eating louse is a small parasite that waits until a fish opens its mouth to eat, then goes inside. It attaches to the tongue and eventually eats it away. The fish then stays in the fish’s mouth where it can eat other organisms as it pleases.
This strange looking creature lives deep in the ocean. Scientists believe they are some of the oldest fish to have lived. They have huge dark eyes and are spooky looking. Good thing they are rarely seen.
The frilled shark is also rarely seen and lives in the dark depths of the oceans. It has triple pointed teeth that make it appear terrifying. It may not be huge itself, but those teeth could do some serious damage to anything it catches.
This thing looks like something from a scary movie. It has a strange claw that almost looks like a chainsaw. It could cut up anything and it pretty much does. Who would want to run into one of these?
It has a cute name, but the creepiest thing about this creature is that it’s super tiny. It lives in drops of water. You may have encountered one before and not even known it.
This big creature is also called a sunfish. They can grow to be huge and are pretty creepy. For the most part, they are harmless, but running into one in the ocean can be a little nerve-wracking. They can grow to over 2,000 pounds.
The giant squid is something that people see in nightmares. They are often the star of many scary films. They are very real and very big. Only a few have ever been seen or photographed but that’s enough to prove they exist.
This shark was only recently discovered. It’s pretty scary. It has a large mouth that lights up when it’s open. It attracts small fish and other sea creatures. They aren’t seen often and live in deep waters.
The Gulper Eel is a truly terrifying creature. It has a huge gaping mouth that it uses to gulp up other animals. Luckily, they live very deep in the ocean and aren’t a threat to humans.
This shark looks just like a goblin, which justifies its name. These sharks can detach their mouths to catch prey. They are pretty creepy, but they also live in the deeps, so you probably won’t ever see one.
It may be small, but it looks awfully scary. You wouldn’t want to see this thing swimming at you. Even worse, it smells horrible because it releases Trimethylamine Oxide. Scary and gross.
There’s nothing sarcastic about this sea monster. It can open its mouth insanely wide to eat prey. It’s also really good at scaring off predators.
These things look like aliens. They actually live in the ocean and can grow to huge sizes. They have been around since the dinosaur era and are still around.
This monster lives deep in the ocean. It has huge teeth that is uses to defend itself and kill its prey. It could easily take a chunk out of a human’s leg if it wanted.
This fish has a nasty underbite. It uses it to its advantage to kill its prey. It also glows in the dark. At least you would see it coming before it bites.
Dragons don’t exist, right? Well, this fish sure looks like one. It has a huge spiked tail and long sharp teeth. Creepy!
Crabs aren’t that scary unless they’re gigantic. This giant spider crab has long legs and big pinchers. It’s one of the largest crabs in the world. Luckily, it lives on the bottom of the ocean floor.
This thing could easily be in a horror film. Its sharp teeth make it appear ferocious. Its teeth are so big that it can’t even close its mouth.
What’s worse than a giant squid? How about a vampire squid? They live under the sea where light can’t even penetrate. If they are attacked, they can turn themselves inside out and reveal all their teeth.
This fish looks like it has just given up. The fact that it looks like a human makes it pretty scary. Don’t worry, it’s harmless.
These fish are horrible looking. They live in the deepest parts of the ocean. They lure in their prey with little lights above their heads. Luckily they don’t eat people. Or do they?
This octopus looks a lot like an elephant. It has strange appendages that make it weird looking. Only a few of them have ever been seen. What a strange looking creature.
Things that live in the darkest depths of the ocean have to adapt to the lack of light. This fish has an eye that floats above its head. Whether or not it can actually see well is unknown, but it somehow gets around.
This fish hides on the ocean floor and waits for its prey to swim by before it snatches it up. It looks gruesome, but it doesn’t move much. It just stays on the ocean floor and waits for dinner to come to it.
The name of this fish alone is enough to give a person goosebumps. You won’t see it though. It lives in the ocean where it can swallow prey over 10 times its mass.
Sea pens look like they should be growing on another planet. They appear similar to alien arms or even plants. They are actually alive, but they live on the ocean floor and are rarely seen.
You might think you are free from snakes in the ocean, but the sea cucumber looks a lot like one. These strange creatures can grow to be pretty large. They are harmless though.
This creepy little fish is called a batfish. It’s flat and has sharp spines on its back. It’s not very big, but it can cause some serious damage.
If you saw this coming toward you in the ocean, you might think it’s a giant snake. They aren’t dangerous to humans, but they can be scary. They are actually interesting creatures that even switch genders as they grow.
30. Pink See-Through Fantasia
This looks like an alien, but it’s actually a jellyfish. You can see inside of it. Its organs are just as creepy. Can you imagine seeing something like this making its way toward you in the ocean?
This thing doesn’t look like it should even be alive. It’s covered in spikes. These appendages are longer than its body and they are used to collect food and water.
This is more gross than scary, but if it attacked, you might freak out for a minute. It’s called a Salp. It lives in oceans and actually helps keep them clean by eating all the carbon in the water.
The Bobbit Worm is a real monster if you are a fish. It burrows into the ocean floor and hides. When a fish swims by, it jumps up and attacks it. That’s terrifying.
This giant jellyfish floats through the ocean harmlessly, but it can conjure up a few screams. They look like giant alien blobs. They are just hunting for algae and other small creatures to eat.
You may have heard of or even seen a barracuda, but encountering one in the wild would be really terrifying. These apex predators have sharp teeth and are lightning fast. If one decided to eat you, you wouldn’t stand a chance.
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Our oceans are full of fascinating animals. Some of them are big, some are small, and some are pretty terrifying. We know more about outer space than the deepest ocean. That means there are a lot of unknown animals living in the deeps.
Every year, scientist discover new animals living in the ocean. Some of them live where the pressure is incredible and others live where there is no light present. This means they have to adapt. A lot of them look like real monsters.
Old stories are full of sea creatures with strange appearances. We assume most of them are made up, but some may be based on real creatures that live deep under water. Some that have never been seen before.
Here are 35 terrifying creatures that live in the ocean. They are all monstrous in appearance, but some aren’t as scary as they look. Some are a threat to humans and some aren’t. All of them are creepy.
