From nefarious-looking fish to poisonous eels lurking in the depths of the ocean, these deep sea creatures look otherworldly ... but they've all been found right here on Earth.
This critically endangered fish found in the waters of Tasmania uses its fins as "hands" and can even “walk” along the ocean floor.
Roman Fedortsov of Murmansk, Russia, is a deep-sea fisher whose Instagram account is full of incredible fish, like this one.
This guy looks like he needs some moisturizer for those red lips.
This fish looks like something straight out of an ‘80s horror movie.
With the looks of a horror movie monster, the stargazer is a family of fish with eyes on the top of their head. It is found mostly buried in the mud and sand of Indo-West Pacific waters.
A Fish-Like Dragon
This guy has eyes that look like they could hypnotize a person.
This fish appears to need some orthodontic work.
A Pointed Nose
One Instagram user commented that this fish looks like a "Knifehead" from the film "Pacific Rim."
The creepy frogfish lives in any tropical or subtropical region; its camouflage helps lure prey to their death.
Monster or Fish?
Imagine coming across this guy while taking a nice swim...
Are they smiling or are they hungry? Either option is horrifying.
Spider Hermit Crab
This long-legged sea creature was photographed off Bonaire, an island in the Leeward Antilles in the Caribbean Sea.
Fedortsov noted that biologists caught this beast off the coast of Portugal.
Where does it begin and where does it end?
Fedortsov described this monster as an “unusual cod.”
Nicknamed “zombies” or the “undead” of fish because of their pallid color, the Atlantic wolffish are some of the scariest-looking fish in the sea.
From May to June 2017, a Museums Victoria crew of the RV "Investigator" went on an expedition off the coast of Australia and found some incredible creatures.
This deep-sea predator found by the "Investigator" crew has both male and female reproductive organs.
The dragon fish has the haunting ability to glow in the dark. The red dragon fish emits a red light to capture its prey.
This spiked fellow is definitely one of the sharpest creatures the "Investigator" crew found on their expedition.
Southern Cut-Throat Eel
Found in the Flinders Commonwealth Marine Reserve by the "Investigator" crew, this eel dwells in frigid waters over 16,000 feet deep.
Also found in the Flinders Commonwealth Marine Reserve, the coffinfish lives worldwide on muddy or rocky sea floors.
Arachnophobes beware: These creatures tread water rapidly and are found worldwide.
Despite that fabulous head of green hair, this creature is not a member of an '80s punk band.
Atlantic Spiny Lumpsucker
With perhaps the most hilarious deep-sea name, the Atlantic spiny lumpsucker has no scales and is instead covered in cone-shaped tubercles. This common species is found across the Canadian Arctic.
Daggers for Teeth
Those sharp, razor-like chompers look like they can do some seriously deadly damage.
To say this fish has an overbite would be an understatement.
You can never escape the eye of this creature.
This fish gives new meaning to the term “big mouth.”
Nostrils or Eyes?
One Instagram user commented, “Definitely an alien.”
This common ling is found in the northwestern and northeastern parts of the Atlantic, and in the northwestern Mediterranean Sea.
Also known as the zombie worm or bone-eating worm, this slimy-looking creature was photographed by the RV "Investigator" crew.
Blind Cusk Fish
The fish with no face is best viewed with an empty stomach.
Fedortsov captioned this, “Dinosaurs did not die off, they simply disguised.” This fish definitely looks like it swam out of "Jurassic Park."
Eyes as Black as Night
This looks like the ghost of a sea monster.
This nightmare was caught in Morocco’s fishing zone and looks like a monster from a John Carpenter film.
This halibut looks like it’s seen better days. Part of the flatfish family, halibut have eyes on the end of stalks that pop out from their head. Halibut are found in eastern and western Atlantic waters.
Fedortsov joked that these fish are what a person looks like the day after New Year’s Eve.
Found in the Southwest Pacific, this mysterious creature can grow up to 4 feet.
This species of the boxfish family is found in Indo-Pacific waters and can grow up to nearly 8 inches in the wild.
Found in oceans worldwide, these alien-esque crustaceans are also known as "ghost shrimps."
Most jawfish are small and reside in warmer sections of the Atlantic, Pacific and Indian Oceans. The jawfish featured here was photographed while breeding eggs in its mouth.
Native to the western Pacific Ocean and the Indian Ocean, the whiteface waspfish has a max length of about 4 inches.
This cranky-looking blenny was photographed in the Bahamas.
With a face only a mother could love, this guy is quite the beast. He was photographed in the Maldives.
Yellow-Lipped Sea Krait
Found in Indo-Pacific and Atlantic waters, this venomous sea snake is known for its black stripes and yellow nose.
The pectoral fins that extend from the body of a tripod fish help to detect any nearby predators. The fish are found in the Atlantic, Pacific and Indian Oceans.
More like stone-cold killer, the stonefish is one of the most venomous fish in the world and is found in the Indo-Pacific.
Some pufferfish are extremely toxic, and in certain species, their liver and skin are poisonous to most animals when eaten. Most pufferfish live in the Pacific, Indian and Atlantic Oceans.
The unusual-looking creature is found in the Indo-Pacific and feeds mainly on tiny fish and crustaceans.
The detailed design of this creature is majestic.
Quite often seen with its head coming out of a hole and the rest of its body hidden, this eel has a dangerous bite and is found in Western Atlantic and Eastern Atlantic waters.
Found in the Atlantic, Indian and South Pacific Oceans, this bug-eyed fish can grow to a little over 3 feet.
Found in Indo-Pacific waters, the ribbon eel can grow to over 4 feet.
This scorpionfish was photographed in Anilao, Philippines. Scorpionfish are found in Indo-Pacific waters.