This video, uploaded by British water company United Utilities in April 2011, showed three clips of a maintenance robot running across some sort of creature in the sewers under the St. James neighborhood of London. The internet population quickly began wondering if this was some sort of genetic experiment or just an escaped monkey before someone put together that it was April and United Utilities had a “What Not To Flush” campaign running to educate people about proper sewer usage. Yeah, a water company pulled a viral April Fools' Joke that’s still circulated as legitimate. It only lives on because of how creepy it it.
Chrysomallon squamiferum is found around inhospitable Indian Ocean hydrothermal vents, extreme ecosystems in 8,000 feet of water. Water temps can reach over 700°F, and biological communities sprout up where the salt water and extreme heat interact. Here, armored snails use iron sulfide to build their shells — the only animals on Earth to use iron in this way. Black metallic scales also cover the foot. 

You might be surprised to learn that this beautiful sea critter (also known as a sea swallow or blue dragon) is actually a sea slug. The blue and silvery mollusk is known to feed off cnidarians like the venomous Portuguese Man o' War. What makes these gorgeous slugs even more fascinating is their practice of storing the cnidarians's stinging nematocysts within its own tissues — ensuring a painful sting to anyone who messes with it.
The first part of this video, in which a man is woken up by the sound of crying and finds a crouching figure in the hallway, is scary enough. But when he returns for another glimpse at the figure, he finds it closer, its arms in the air, making it less likely to be a figment of his imagination and more likely to be some otherworldly presence in his home.
Blobfish, pangolin, and flower mantis are just a few of the names of the bizarre bugs and animals that readers will learn about in this fascinating nonfiction title. Through vibrant images and photos, informational text, a glossary of terms, and an index, readers will learn some of the strange ways that arthropods, invertebrates, and mammals have adapted over time to camouflage themselves and develop interesting ways to keep predators away.
Hosted by the Illinois Paranormal Research Association, Believe operates on a weekly basis, with the crew traveling the country, documenting every demonic disembodied voice and shadowy figure along the way. Led by David Scott, these paranormal investigators have made it their mission to separate the haunted from the not-so-haunted, using innovative investigation techniques to capture both visual and audio evidence while visiting everything from haunted hotels to mental health hospitals. 
This rare shark is sometimes even called a “living fossil”, “is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old.” Goblin sharks inhabit around the world at depths greater than 100 m (330 ft), with adults found deeper than juveniles. Given the depths at which it lives, the goblin shark poses no danger to humans. (Image credits: imgur)

This deep-dweller — also known as the spook fish (Macropinna microstoma) — has tubular eyes that protrude from its large transparent dome of soft tissue. Barreleyes live in complete blackness, and scientists believed their ultra-sensitive eyes were fixed and could search only for the silhouettes of prey overhead. Recently, though, researchers found that their eyes can pivot forward, which allows the fish to see prey in front of it.


The closest thing to getting blood from a stone! Lurking off the coast of Chile and Peru lives a sea creature that blends in so naturally with the rocks on which it lives. However, if you were to accidentally stand on this living rock it will burst to expose a mass of blood-red hermaphrodite creatures considered a delicacy in the nearby Central American countries. It is born a male before developing female organs which means it can breed with itself. Strange but true.
This deep-dweller — also known as the spook fish (Macropinna microstoma) — has tubular eyes that protrude from its large transparent dome of soft tissue. Barreleyes live in complete blackness, and scientists believed their ultra-sensitive eyes were fixed and could search only for the silhouettes of prey overhead. Recently, though, researchers found that their eyes can pivot forward, which allows the fish to see prey in front of it.

Not only does this Japanese facial-tissue commercial make no sense as an ad -- what does that tomato/unicorn baby have against wiping itself? -- it's also, supposedly, cursed. Like earlier "viral" videos that would get passed around on VHS, this curse comes with an isolating twist: Watch the video by yourself at midnight (in your respective time zone, of course), and the video changes to a distorted, satanic-looking mess with a pair of black eyes that stare back at you.
Want to give an arachnophobic diver a heart attack? Put a Japanese spider crab in his path. These critters have very, very long legs which can extend up to 12 feet. Despite their somewhat intimidating appearance, they are reported to be quite docile and friendly, and a lot less scary than many of the more innocuous looking species that inhabit the ocean floor.
“The leaf-tailed geckos are native to Madagascar and are renowned for their camouflage. This individual is just a juvenile. Many of the leaf-tailed gecko species press their bodies against wooden limbs and trunks during the daytime, and their flattened bodies, fringes, and tails eliminate any shadow, making them invisible to predators. At night, they become active and hunt primarily invertebrate prey.” – Mike Martin
The Panda Ant is a most unusual species of insect. Their name derives from the obvious resemblance to a panda in its markings. This remarkable insect is not even an ant. The Panda Ant is actually a variety of wingless wasp! Very little is known of this little seen insect. They have been seen to bring down animals as large as cows with only a few dozen stings.
Right away this video is suspicious just from the description -- a ghost hanging around the Haunted Mansion at Disneyland? That's a fake haunted house. Why would any realm-shambling specter waste its time in a place where people are expecting to see automated rocking chairs and Muppets dressed up like phantoms? It just seems like that would be super boring.
A headless goddamned ghost appears right in goddamned front of them. You literally see it materialize on camera -- of all the entries on this list, this is the one you absolutely have to watch (here's a shorter version that cuts right to the ghost if you don't have 4 free minutes). Seriously, your mind will be blown like Eric Stoltz's penis in The Rules of Attraction. As they swing the camera lazily through the room, the ghost just walks very purposefully toward them like it's delivering a pizza, while a long, low moan emanates from its phantom lungs.
Sadly, in the wild, axolotls are on the brink of extinction. They’re found only in local waterways near Mexico City, where urbanization and water pollution have exacted a toll on their population numbers. Compounding these environmental hazards are nonnative fish species such as Asian carp and African tilapia, which eat juvenile axolotls. These amphibians, which are popular in home aquariums, can be nearly black, chocolate brown, golden, cream colored, speckled or piebald.
It’s the most wonderful time of the year: Halloween! And the only thing more fun than celebrating with a "sexy [insert inanimate object here]" costume and downing candy corn shots is not doing that and instead downing something pumpkin-flavored under a pile of blankets while watching some truly terrifying content. If you’re stuck for ideas, here are 13 of our favorite (read: scariest) classic ghost movies guaranteed to keep you up all night thinking, What was that? Did you hear that?! TURN THE LIGHTS ON.
​Galeopterus variegatus, also named Sunda Colugo or the Sunda Flying Lemur, is a nocturnal and arboreal (lives in trees) mammal endemic to Indochina and Sundaland. These animals possess large membranes of skin called patagiums that extend along the limbs, allowing them to glide along distances of up to around 100 meters; given that these animals are only around 40 centimeters in length that's pretty impressive skills! The mottled coloring of these animals also makes them look a bit like the lichen of a tree and therefore helps to camouflage them. 
Nurul Islam, 37, was enjoying the afternoon with his niece, Mayrian Islam,11, and nephew, Ryhan Kaliq, 9, and snapping pictures in front of a fake Victorian-style ruin when suddenly a "ghost" appeared out of nowhere. At first, Nurul didn't think it could possibly be an apparition. But, then again, he also says he made sure all the other tourists were out of the way before he snapped this shot.
Despite its ferocious demeanor, the fangtooth measures a little more than 6 inches in length as an adult. Juveniles and adults look so much different that in the 1800s they were thought to be distinct species. Juveniles are found as shallow as 150 feet, migrating into the depths as they mature. It is believed that males are parasitic of females and attach permanently onto them to fertilize the eggs.
The Yeti crab is a recently discovered animal which lives in the South Pacific Ocean. The Yeti crab looks like it’s always wearing the bright yellow crab-mittens its grandmother gave it for Christmas one year. It’s roughly 15 cm long and its pincers contain bacteria which it can use to clean the water around its body. It usually eats green algae and small shrimp.

And the light from the "angel" has a strange weight to it -- you can see it pulse outward at the bottom as it suddenly gains mass after striking the ground. Anyway, maybe a Pixar animator got bored and threw this together just to mess with people. After contacting all of his or her friends in Jakarta, Indonesia, to stage it. Including, of course, his or her friends with access to the security footage of that particular public square.
Hosted by the Illinois Paranormal Research Association, Believe operates on a weekly basis, with the crew traveling the country, documenting every demonic disembodied voice and shadowy figure along the way. Led by David Scott, these paranormal investigators have made it their mission to separate the haunted from the not-so-haunted, using innovative investigation techniques to capture both visual and audio evidence while visiting everything from haunted hotels to mental health hospitals. 
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