ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Strange And Bizarre Sea Animals

Updated on November 29, 2014

Our planet's oceans cover approximately 71% of the Earth's surface and according to oceanographers, only about 5% of their waters have been explored. In other words, we only have a small idea of what's going on down there.

Despite exploring only a very small part of them, researchers and scientists have discovered some animals that are truly bizarre. Some of them are weird in a bad, frightening way. Some are so weird that they seem like they came from another planet. And some are just that. Weird.

From this hub, I will share with you images and videos of some of the strangest sea creatures. The hub is on-growing, and I will update it from time to time with new animals. So make sure to bookmark and visit it every now and then!

Suggestions are always welcome, so don't hesitate to comment if you have a strange sea animal to recommend!

The Giant Isopod

Giant isopods live in the cold and deep waters of the Atlantic Ocean. They can be found in all three major oceans, in depths ranging from 200 to 2200 meters.They are scavengers, consuming dead animals that fall on the oceanic floor, like whales and squids.

As indicated by their name, they are the biggest species of isopod and can grow to be at least 76 cm long, almost as big as a small dog! Considering that isopods are usually 1-5 cm long, we can say that they grow big, really really BIG!

Despite their frightening appearance, they pose no threat to humans. They do bite, but the bite is small and harmless.

Striped Pyjama Squid

Also known as the striped dumpling squid and scientifically described as Sepioloidea lineolata, this cute little creature reaches an average length of only 5 cm.

Obviously, its common name is an attribute to its pyjama-like appearance. Their small and round body also resembles a dumpling and thus their second common name.

Found throughout the waters of Australia, at depths of about 20 m, the species spends most of its life buried in the sandy sea floor, hiding its presence from predators and unsuspecting prey.

Yellow boxfish

There is only one word that can describe these cute little creatures. Cute ! Yellow boxfish can be found in reefs throughout the Pacific Ocean and Indian Ocean, as well as the south eastern Atlantic Ocean.

Their body is cube like and they can reach a maximum length of 40 cm. Their bright yellow color and black spots is actually a warning coloration that the fish is poisonous if consumed.

Goblin Shark

The hideous goblin shark (Mitsukurina owstoni) is by far the world's most strange shark, featuring all kinds of weird and un-shark traits. For example, it is the only pink shark out there.

But what's even more bizarre about it, is its distinctive and protrusible jaw that comes out, much like the mouth of the Alien from the... Alien franchise.

This frightening creature has a worldwide distribution, although sightings are more common in Japan. Don't worry about coming across one anytime soon, unless you commonly dive at 500 m or deeper!

Bigfin Squid Video

Bigfin Squid

Bigfin squids (also known as Long-arm squids), are a poorly understood and rarely seen group of cephalopods of the Magnapinnidae family. As of today, researchers have yet to catch an adult specimen. We only have video footage, like the one you see on the right

We know very few things about them, from just a handful of immature specimens that have ever been caught. As you can see on the video, they have a really frightening appearance, reminiscent of the aliens from the Independence Day film.

Estimations made from videos taken by remotely operated vehicles and other submersibles, place their maximum length to at least 8 meters. Scary!

Red lipped batfish

The red lipped batfish is a really strange looking species of fish.

Obviously, its named this way due to its bright red lips, that are seemingly covered with lipstick! These guys can be found on the sandy bottoms of the Galapagos Islands, at depths ranging from 30 to 50 meters.

An interesting fact about them is that they are very bad swimmers. Their fins have evolved in such a manner, that they actually prefer to "walk" or "sit" on the sea bottom, instead of swimming or floating.

Promachoteuthis Sulcus

This alien looking creature is actually a squid, scientifically known as Promachoteuthis Sulcus. There is still no common name for the species, but some call it the squid the human like mouth, for obvious reasons. But does it really have a set of dentures? Perhaps the teeth are something else? Click here to find the truth!

The King of Herrings

The King of herrings is the world's longest known bony fish and is also known as the giant oarfish.

Amazingly, this terrifying creature can reach a length of at least 17 metres and a weight of up to 300 kg! It occurs in depths of 300-1000 meters and rarely appears to surface. Most reports comes from dead animals that were washed ashore. Many attribute sea serpents legends to appearances of this animal.

Don't be frightened by its looks and size. The giant oarfish has no visible teeth and only eats small crustaceans and zooplankton!

The googly-eyed glass squid

This alien-like, transparent creature is actually a squid, of the Cranchiidae family. Sightings are very rare and we know very little about it.

It is a blue, transparent organism with an average length of about 20 cm and has notably large eyes. Females tend to be slightly larger than males. It has has eight short tentacles and a slightly longer pair at the end of its rather swollen body.

Spotted Handfish

The spotted handfish (Brachionichthys hirsutus) is a rare and critically endangered fish, found exclusively in the waters of south-eastern Australia. It is a relatively small fish, with an average length of about 10 cm. It iusually inhabits depths ranging from 5 to 10 m.

This bizarre animal is best known for its modified, hand-like fins that allow it to "walk" in the sea bottom. The species actually prefers walking to swimming !

The Chambered Nautillus

The Chambered Nautilus is the largest and most researched species of nautilus. It is considered to be a living fossil since it has remained unchanged for the past 600 million years!

It lives in tropical waters, that extend from the Andaman Sea east to Fiji and from southern Japan to the Great Barrier Reef. They are scavengers feeding on dead crabs, fish and shrimps.

Blanket Octopus

Blanket Octopus is the common name used for 4 distinct octopuses species of the Tremoctopus genus. Females of all species grow to be at least 2 meters long whereas males have a maximum length of only 2.5 cm (1 in.)!! This phenomenon is known as extreme sexual dimorphism.

These strange animals don't produce ink. Instead, when under threat, females unfurl their large net-like membranes which spread out and billow in the water, greatly increasing their size.


Narwhals are a strange species of whale that lives in the Arctic. Male narwhals have a long and straight tusk extending from their upper left jaw. This tusk is 2 meters in length. There are even some reported cases of narwhals having 2 tusks!

The role of their tusks has yet to be identified, however researchers speculate that it is used to attract females or for breaking the ice. Possibly, many myths originate from these strange but beautiful animals. According to historians, it was a common practice in medieval times, for traders to sell narwhal tusks as "unicorn tasks" !

Yeti Crab

The yeti lobster is a weird animal that was discovered only a few years ago in 2005,in the South Pacific Ocean. The yeti crab is also known as "yeti lobster" and "furry lobster".

It has pincers that are covered with sinuous, hair-like strands that resemble fur. The yeti lobster blind and exclusively found in great depths (2.000 m or more) on hydrothermal vents.

Ocean Sunfish

The Ocean Sunfish - also known as Mola - is the world's heaviest bony fish. These beautiful animals have an average weight of one ton and and average length of about 1.8 meters..

They are usually found in open waters, swimming either alone or some times in pairs. They have been reported to live to be up to ten years old in captivity, however their lifespan in their natural habitat has yet to been determined.

They mainly feed on large quantities of jellyfish. Despite their big size they pose no threat to humans, with only minor injuries reported, due to their heavy weight.

Tongue Eating Louse

The tongue eating louse is probably the world's most strange parasite. The main host for this parasite is the Spotted Rose Snapper. This parasite actually "replaces" the host's tongue with.. itself!!!

After entering to the body through the gills, it attaches itself to the tongue. It feeds from the tongue and slowly but steadily replaces. The poor fish doesn't die. It just gets a new, tongue! Unless you are a fish, you have no reason to worry!

The giant grenadier is a very large, strange and scary looking ratail fish. It is the only known member of the Albatrossia genus.

This fish lives at the benthopelagic level in the midnight zone with its habitat covering the north Pacific, from northern Japan to the Okhotsk and Bering seas, east to the Gulf of Alaska, and south to northern Baja California located in Mexico.

More strange sea animals to come !

As aforementioned, the hub will constantly be updated with more and more strange sea animals so please consider visiting it from time to time! If you enjoyed reading it, please give it a thumbs up, subscribe, and share it with your friends !

In the meantime, you may want to check these links:


This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

Show Details
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
ClickscoThis is a data management platform studying reader behavior (Privacy Policy)