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19 Blobfish Facts That Will Blow Your Mind

Written By Anne Kostick
Last updated: June 4, 2024

Let’s commence on a journey to uncover 19 astonishing blobfish facts that will truly change how we view these deep-sea dwellers. We’ll explore their gelatinous bodies, how they’ve adapted to the intense pressures of the ocean depths and the vital roles they play in their ecosystems.

From their reputation as the world’s ugliest fish to their surprising presence in online culture, there’s much more to these creatures than meets the eye. Ready to discover what makes blobfish so fascinating? You won’t want to miss the surprising details ahead.

Here Are The 19 Blobfish Facts

Let’s kick off with some interesting facts about the blobfish. These fascinating creatures live in the deep sea off the coast of Australia, typically found at depths between 600 and 1,200 meters.

Known for their gelatinous, flesh-like appearance, blobfish are often considered the world’s ugliest fish and have a boneless body that helps them withstand immense pressure.

1. Lives in the deep sea off Australia

Blobfish inhabit the deep waters off the coasts of Australia and Tasmania, thriving at depths where few other creatures can survive. These waters are part of the ocean’s abyssal zone, known for its extreme conditions. Down here, the water is cold, dark, and under immense pressure. Most fish couldn’t handle such an environment, but blobfish have adapted perfectly to these harsh conditions.

Blobfish Facts

In this deep-sea habitat, the blobfish’s unique appearance actually serves a purpose. Their gelatinous bodies are well-suited to the high-pressure environment. Unlike fish that have gas-filled swim bladders to maintain buoyancy, blobfish rely on their low-density flesh to float just above the ocean floor. This adaptation helps them conserve energy, as they don’t have to swim actively to stay afloat.

2. Found at depths of 600 to 1,200 meters

Residing at depths of 600 to 1,200 meters, these gelatinous creatures endure conditions that would crush most marine life. Blobfish live in an environment with extremely high pressure, which is about 60 to 120 times greater than what we experience at sea level.

Blobfish Facts

This pressure is so intense that it would be fatal to many other organisms, but blobfish have adapted perfectly to their deep-sea home.

3. Has a gelatinous, flesh-like appearance

Their remarkable ability to withstand extreme pressure is matched by their unique gelatinous, flesh-like appearance.

Blobfish Facts

When we think about deep-sea creatures, we often imagine them to be tough and armored. However, the blobfish defies this expectation with its soft, jelly-like body. This unusual texture helps the blobfish survive in the deep ocean, where pressures are incredibly high.

Unlike many fish, blobfish don’t have a swim bladder, which is an organ that helps fish control their buoyancy. Instead, their gelatinous flesh has a density just slightly less than water. This allows them to float above the ocean floor without expending much energy.

4. Often considered the world’s ugliest fish

Many people think the blobfish holds the dubious title of the world’s ugliest fish. When we look at pictures of blobfish that have been brought to the surface, it’s easy to see why. Their saggy, gelatinous appearance, with a face that seems to melt into itself, often makes them the subject of jokes and memes. Their large, droopy nose and downturned mouth don’t help their case either.

Blobfish Facts

In reality, the blobfish doesn’t look quite as strange in its natural deep-sea habitat. Down there, the pressure is much higher, which compresses their bodies and gives them a more typical fish-like appearance. However, when they’re brought up quickly to the surface, the drastic change in pressure causes their bodies to expand and lose shape, resulting in the blob-like form we’re familiar with.

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5. Its boneless body withstands immense pressure

Unlike most fish, the blobfish has a boneless body that allows it to withstand the immense pressure of its deep-sea environment. Instead of bones, the blobfish’s body is made up of a gelatinous mass. This unique structure means it doesn’t have to worry about being crushed by the intense pressure found at depths of up to 4,000 feet.

Blobfish Facts

We might think of bones as essential for support and movement, but for the blobfish, a boneless body is key to survival. Its gelatinous flesh has a density of just slightly less than water, which helps it float above the sea floor without expending much energy. This adaptation is important because swimming in such high-pressure environments requires significant effort for most fish.

The lack of a swim bladder, an organ typically used by fish to maintain buoyancy, also ensures the blobfish doesn’t implode under pressure changes.

6. Feeds on drifting invertebrates with minimal effort

In addition to its unique body structure, the blobfish‘s feeding habits are perfectly suited to its deep-sea lifestyle. Unlike many ocean creatures that actively hunt for food, blobfish take a more passive approach. They feed on drifting invertebrates, such as sea pens, crabs, and sea urchins, which float by in the deep ocean currents. This feeding method allows the blobfish to guarantee energy, an essential trait for survival in the deep sea where food can be scarce.

Blobfish Facts

Blobfish don’t have to chase their prey or expend much energy to capture it. Instead, they simply open their mouths and let the current bring food to them. This minimal-effort feeding strategy matches their slow-moving nature and the low-energy environment they inhabit. By relying on the natural movement of the ocean, blobfish can sustain themselves without needing to swim long distances or engage in active hunting.

Their diet mainly consists of whatever small creatures happen to drift within reach. This opportunistic feeding style ensures that blobfish can survive in the deep sea’s challenging conditions, where finding food can be difficult and resources are limited.

7. Has a low metabolic rate, conserving energy

Blobfish have an incredibly low metabolic rate, which helps them conserve energy in their deep-sea environment. This means they don’t need to eat much or move around a lot to survive. Their slow metabolism is a key adaptation for living at depths where food can be scarce and energy conservation is essential.

Blobfish Facts

By minimizing their energy needs, blobfish can remain relatively inactive, floating just above the ocean floor and waiting for food to come to them. Because of this low metabolic rate, blobfish don’t have to chase their prey. Instead, they rely on their ability to drift along with the currents, catching small invertebrates that happen to float by.

This passive lifestyle helps them avoid expending unnecessary energy, which is crucial for survival in their cold, high-pressure habitat. Additionally, their gelatinous bodies, which are less dense than water, further aid in this energy-saving strategy. They don’t need to use their muscles much to stay buoyant.

8. Not actively hunted or considered a food source

Thanks to their low metabolic rate and passive lifestyle, we don’t actively hunt blobfish or consider them a food source. Blobfish live in deep ocean waters, where commercial fishing isn’t common. Their gelatinous bodies aren’t suited for human consumption, which makes them unappetizing to us. Their habitat, typically at depths of 2,000 to 4,000 feet, also protects them from being caught by most fishing methods.

Blobfish Facts

We should note that blobfish are often caught incidentally in deep-sea fishing operations targeting other species. This unintentional capture happens when deep-sea trawlers scrape the ocean floor. Unfortunately, blobfish can’t survive the drastic pressure changes when they’re brought to the surface, leading to their death even though they’re not the intended catch.

Also Read: 20 Incredible Colugo Facts: Discover This Amazing Creature

9. Voted the world’s ugliest animal in 2013

The blobfish gained international fame when it was voted the world’s ugliest animal in 2013. This unusual fish captured the attention of people worldwide, leading to a mix of fascination and sympathy. The Ugly Animal Preservation Society held an online poll to determine the ugliest creature and the blobfish won by a significant margin. This vote wasn’t just for fun; it aimed to raise awareness about endangered species that don’t typically get much attention.

Blobfish Facts

When we think about the blobfish, its unique look stands out. Its gelatinous appearance and droopy features make it memorable. The blobfish’s new title helped it become an unofficial mascot for the Ugly Animal Preservation Society, highlighting the importance of conserving all kinds of wildlife, even those that mightn’t be conventionally attractive.

10. Its appearance is an adaptation to deep-sea life

Many of the blobfish‘s unusual features are actually clever adaptations for surviving the extreme pressures of deep-sea environments. Living at depths of up to 4,000 feet, where the pressure can be over 100 times greater than at sea level, the blobfish has evolved in unique ways to cope.

Blobfish Facts

One of the most noticeable adaptations is its lack of a swim bladder, an organ that helps other fish control their buoyancy. In the crushing depths where blobfish reside, a swim bladder would collapse under the intense pressure.

11. Their body allows easy movement through water

Thanks to their gelatinous bodies, blobfish move effortlessly through the deep-sea waters. Unlike most fish, blobfish don’t have the typical muscles and bones that other aquatic creatures rely on for swimming. Instead, their bodies are composed of a jelly-like substance that makes them buoyant in the high-pressure environment of the deep ocean. This unique adaptation allows them to float just above the ocean floor without expending much energy.

Blobfish Facts

Blobfish don’t need to swim actively like other fish. Their bodies are designed to withstand the crushing pressures of their deep-sea habitat, about 600 to 1,200 meters below the surface. At these depths, the extreme pressure provides the necessary support for their bodies, which would otherwise collapse if brought to shallower waters. Because of this, blobfish can conserve energy and move with minimal effort.

12. Their skin is translucent for camouflage

Possessing translucent skin, blobfish blend seamlessly into their deep-sea environment to avoid predators. This special adaptation makes them difficult to spot in the dark, murky depths of the ocean where they live. Their skin’s see-through quality helps them camouflage against the surrounding water, rocks, and other sea creatures. This essential disguise is vital for survival, as it reduces the chances of being detected by larger predators looking for a meal.

Blobfish Facts

We find that the blobfish’s translucent skin isn’t just a random trait—it’s a well-evolved feature that supports their way of life. Living at depths ranging from 2,000 to 4,000 feet, where sunlight barely penetrates, their skin’s transparency is an effective defense mechanism. In the deep sea, being able to remain unnoticed is a valuable asset.

13. Blobfish are intelligent and communicate with sounds

Blobfish exhibit a surprising level of intelligence and have been observed using sound to communicate with each other in their deep-sea environment. This might come as a shock to many, given their peculiar appearance, but blobfish are more than just their looks.

Blobfish Facts

In the dark, high-pressure depths where they live, sound is an essential tool for survival. They’ve developed the ability to produce low-frequency noises that travel well through water, allowing them to send messages over long distances.

These sounds can serve various purposes. Blobfish might use them to locate each other, especially during mating seasons, or to alert others about potential dangers nearby. This form of communication is important because visual cues are almost useless in the pitch-black ocean depths. Scientists have recorded and analyzed these sounds, providing evidence that blobfish are quite social within their own communities.

14. Their diet consists of crustaceans, worms, and fish

Beyond their unique communication skills, let’s explore what blobfish eat in their deep-sea habitat. Blobfish have a straightforward diet, mainly consisting of crustaceans, worms, and fish. Living in the deep ocean, they encounter a variety of food sources that float by. They don’t actively hunt like many other fish. Instead, they rely on their ability to stay buoyant and wait for food to come close.

Crustaceans make up a significant part of their diet. These include crabs and lobsters, which are abundant in their environment. The blobfish’s soft body allows it to easily engulf these creatures. In addition to crustaceans, worms are another common food source. These worms, often found in the seabed, provide essential nutrients for the blobfish.

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15. Blobfish are solitary creatures preferring to live alone

Unlike many marine species, these fascinating creatures prefer a solitary existence, steering clear of social interactions in the depths of the ocean. Blobfish are known to live alone, avoiding the company of other fish. This solitary lifestyle sets them apart from many other marine animals that often travel in schools or groups.

In the deep sea, where the blobfish reside, resources can be scarce. By living alone, they reduce competition for food. This behavior helps them survive in an environment where every meal counts. Blobfish don’t need to fight over the crustaceans, worms, and fish that make up their diet. Instead, they can focus on finding and eating their prey without interference.

Living alone also means blobfish can avoid potential predators more easily. In their dark, deep-sea habitat, blending into the surroundings is essential for survival. By not attracting attention from other creatures, they stay safer. Their solitary nature likely contributes to their longevity.

16. They reproduce using external fertilization

When it’s time to reproduce, these deep-sea dwellers depend on external fertilization to secure the continuation of their species. In this process, female blobfish release their eggs into the surrounding water. These eggs are generally found in nests on the ocean floor. Once the eggs are released, male blobfish come along and fertilize them by releasing sperm over the eggs. This method is common among many fish species that live in the vast and often sparsely populated ocean depths.

Blobfish Facts

External fertilization has its advantages and disadvantages. One major benefit is that it allows a large number of eggs to be fertilized at once, increasing the chances that some will survive to adulthood. However, the process also means that the eggs are vulnerable to predators and environmental conditions. To help protect their offspring, blobfish often stay near the nest, guarding the eggs until they hatch.

Interestingly, blobfish eggs are relatively large compared to those of other fish species. This size can offer some protection, making it harder for small predators to eat them. Overall, external fertilization is an essential part of the blobfish’s life cycle, ensuring the species’ survival in the deep ocean.

17. Habitat loss and bycatch threaten blobfish

Protecting blobfish is crucial in addressing the threats they face from habitat loss and bycatch in their deep-sea environment. These peculiar creatures inhabit depths between 600 and 1,200 meters, mainly off the coasts of Australia and New Zealand. Unfortunately, human activities such as deep-sea trawling directly impact their habitat.

When fishing nets scrape the ocean floor, they destroy the seabed, which serves as a home to various marine species, including the blobfish. This destruction diminishes the blobfish’s living space and disrupts their ecosystem.

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18. Their appearance is popular in memes and online culture

Blobfish have gained widespread fame on the internet due to their unique and often comical appearance, making them a popular subject in memes and online culture. Their droopy, almost human-like face has led to countless jokes and funny images circulating online. Many people find their unusual looks amusing, and this has helped the blobfish become an internet sensation.

Blobfish Facts

We see blobfish memes popping up all over social media platforms like Instagram, Twitter, and Facebook. These memes often highlight the blobfish’s exaggerated features, comparing them humorously to various human expressions or situations. This has made the blobfish a symbol of relatability in the digital age, as people connect with its seemingly sad or disgruntled appearance.

In addition to memes, the blobfish has inspired a variety of merchandise, including plush toys, T-shirts, and mugs. These items often feature the blobfish’s distinctive face, making them a hit among fans of quirky and unusual animals. The popularity of blobfish in online culture shows how an unusual animal can capture our imagination and become a beloved part of internet humor.

19. They play an important role in the marine ecosystem

Despite their peculiar looks, these deep-sea dwellers play an essential role in maintaining the balance of the marine ecosystem. Blobfish are scavengers, meaning they consume dead organic material and other small organisms found on the ocean floor. By doing this, they help clean the seabed, preventing the buildup of decaying matter that could otherwise harm the environment.

We often overlook the importance of scavengers, but they help recycle nutrients back into the ecosystem. When blobfish eat decomposing material, they break it down into smaller particles that become easier for other organisms to use. This process guarantees that nutrients are continuously cycled through the ecosystem, promoting overall health and stability.


So, from their unique gelatinous bodies to their crucial role in the ecosystem, blobfish are fascinating creatures that deserve our attention.

They might look strange, especially when brought to the surface, but they’re perfectly adapted to their deep-sea environment. By understanding blobfish, we gain insight into the complexities of marine life and the significance of every species in maintaining ecological balance.

Charles Eames

Anne Kostick has been Editor-in-Chief since September 2007. Previously, Anne was a principal at Foxpath IND, a publishing, consulting and editorial services company specializing in the transition to and from traditional content publishing and online content management, development and publishing. Her clients included trade book publishers, technology and financial services Web sites, and arts and cultural institutions. Previously, she worked as Licensing and Product Development Director, Senior Acquisitions Editor and Director of Electronic Publishing for Workman Publishing, and as Senior Acquisitions Editor for Harry N. Abrams/Stewart, Tabori & Chang. In the online world she worked as Director of Content Development for Anne has a B.A. in Greek and Latin, with a minor in Theater, from Beloit College. She is the author of several books for children, as well as a definitive collection of jokes.

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