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NOW READING: 10 Weird Sea Creatures You Never Knew

Weird sea creatures you never knew

10 Weird Sea Creatures You Never Knew

These are some of the most popular sea creatures that people can easily distinguish from dolphins, octopuses, orcas, and even great white sharks. However, there are still thousands of species in our ocean that we don’t know. Some you may never hear of, or some you may have heard. There are still weird sea creatures you never knew existed.

Although they might be weird, some are not just popular enough because of various factors. For example, some live in the deepest parts of the ocean, and others are quite elusive and are hard to find. Furthermore, if you want to know some of the world’s weirdest sea creatures to ever exist, be our guest as we will be listing down ten of them!

10 Weirdest Looking Sea Creatures You Never Knew Existed

There are still thousands of weird sea creatures roaming around the open waters and ocean floors, but here are ten of the most weird-looking sea creatures on the planet.

Peacock Mantis Shrimp

Shrimps are known to possess some of the most colorful bodies on the seafloor. However, the peacock mantis shrimp takes it to a whole new level. From vibrant colorations of blue, red, green, this creature has got to be one of the weirdest ones judging by its colors alone. 

They are only found in Indian and Pacific waters has a unique ability to punch their prey with their two appendages, rendering them groggy. They may not be known to attack humans, but they sure have given their prey a beating for the ages.

Weird ocean animals

Pink See-through Fantasia

Not many sea creatures possess the color pink, but the Pink see-through fantasia is one of the exceptions. However, don't be fooled by its intricate morphology, as it is one of the species of sea cucumbers. 

Apart from its unique appearance, this species was only discovered in late 2007 in the Celebes sea and east of Borneo. Aside from their weird appearance, they also possess bioluminescence in which it lights up whenever a predator approaches, this talent of theirs is enough to ward off predators.

Weird sea animals found in the ocean
Weird animals in the ocean you should see

Sea Angels

As their name suggests, it would be safe to assume that this creature looks and feels like an angel. However, that’s not the case. Despite their angelic appearance, the sea angels are predatory fishes belonging to the sea snails family. They are common in cold arctic and Antarctic waters. What makes them one of the weirdest creatures is that they have this elongated foot called parapodia which helps them propel in the water.

Cute and weird sea animals

Whitemargin Stargazer

I would consider the Whitemargin Stargazer one of the few species that can blobfish a run for its money. This is by far one of the most bizarre and weird-looking fish on this list, and it's no competition. 

What makes them ugly-looking sea creatures is they bury their bodies on the sand, leaving only their face to catch predators. It uses its double-grooved poison spines to render its enemy useless, and this fish also contains electrical organs throughout its body. Quite remarkable, right?

Ocean animals that are weird

Hydrothermal Vent Snail

As the name suggests, the hydrothermal vent snail has got to be one of the most intimidating types of snail in the world. However, by looking at it, you would instantly feel that this snail has a great defense with its large and rigid shell. Plus, what makes it interesting is that it is the only one of its kind and was last seen at the Suiyo Seamount of the Tokyo Hydrothermal Vent, hence the name.

Interestingly weird sea animals
Weird animals living in the ocean

Japanese Spider Crab

When you talk about crabs, they are somewhat small to medium-sized crustaceans. However, there’s an exception. The Japanese spider crab, only found in Japanese waters, is incredibly huge. They can reach up to 12 feet long once they reach adulthood. They are also believed to be opportunistic predators, which means they prefer eating dead bodies of marine creatures.

Weird marine animals


Parrotfish is one of the most colorful fishes in our coral reefs. They can range from 1 foot to 4 feet and occasionally showcases their vibrant bodies covered with different kinds of colors but leans towards a darkish blue-green hue. Their name was derived from the fused teeth at the front of their mouth, which resembles a parrot beak.

Unusual sea creatures

Black Swallower

As the name suggests, the Black Swallower has a unique way of eating eats prey. Despite their size, they can swallow their prey much more than their body because of their extended gut, which can accommodate far larger species than you would normally think. This morphologic adaption is especially useful when their preys are relatively larger than them in the deepest part of the sea.

Uncommon ocean animals

Venus Flytrap Anemone

Belonging to the family of sea anemones, the Venus flytrap closely resembles the plant called Venus flytrap and is the mode of catching prey. Whenever a prey closes in, it then latches onto them by closing its tentacles and devours them. They are also related to jellyfishes and are commonly found in the Gulf of Mexico.

Unique and weird sea creatures

Gulper Eel

Named for its massive mouth and jaw, it is capable of devouring food whole. They can grow up to 8 feet long and makes them agile predators as they can devour preys 2 to 3 times their size. However, they do not usually do this whenever the food source is plenty, but they will eventually do it if the food source is scarce. Gulper eels primarily feed on crustaceans and other marine mammals.

Rare types of weird sea animals

Wrapping Things Up

There are still thousands of weird sea creatures not on this list. However, the ten species included on this list are somewhat one of the weirdest ones. From having weird morphologies, ways of eating, or propelling themselves in water, they are a class of their own regarding weirdness in the deep sea.

Lastly, whether they are weird or not, each one of them plays a vital role in every marine ecosystem. Some of them are on top, and some of them are at the bottom. Whatever the case may be, they keep the food chain balanced, which is all that matters.

Weird or not, every ocean animals deserve all our attention and care. You can do this by simply wearing our ATOLEA Sea creature jewelry. We have a wide selections of unique Sea-inspired jewelries that will make you love the Ocean more.

So dive into our collections now and inspire everyone to appreciate and take care our Ocean!

Weird sea animals

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