The ocean is a boundless expanse of trillions of liters of salt water. Thousands of species of living beings have found refuge here. Some of them are heat-loving and live at shallow depths so as not to miss the rays of the sun. Others are accustomed to the cold waters of the Arctic and try to avoid warm currents. There are even those who live at the bottom of the ocean, adapting to the conditions of the harsh world.
The latest representatives are biggest mystery for scientists. After all, just recently they could not even think that someone could survive in such extreme conditions. Moreover, evolution has awarded these living organisms with a number of unprecedented features.
Beneath the oceans
For a long time there was a theory that there is no life at the bottom of the ocean. The reason for this is low temperature water, as well as high pressure that can compress submarine, like a soda can. And yet, some creatures were able to withstand these circumstances and confidently settled at the very edge of a bottomless abyss.
So who lives at the bottom of the ocean? First of all, these are bacteria, traces of which were found at a depth of more than 5 thousand meters. But if microscopic creatures are unlikely to surprise ordinary person, then giant clams and monster fish deserve due attention.
How did you find out about those who live at the bottom of the ocean?
With the development of submarines, diving to a depth of two kilometers became possible. This allowed scientists to look into a world hitherto unprecedented and amazing. Each dive provided an opportunity to discover yet another and see more and more new species.
A fast development digital technologies have made it possible to create ultra-durable cameras capable of filming underwater. Thanks to this, the world saw photographs depicting animals living at the bottom of the ocean.
And every year scientists go deeper and deeper in the hope of new discoveries. And they happen - for last decade many surprising conclusions have been made. In addition, hundreds, or even thousands of photographs depicting the inhabitants of the deep sea were posted online.
Creatures living at the bottom of the ocean
Well, it's time to go on a little trip to mysterious depths. Having passed the threshold of 200 meters, it is difficult to distinguish even small silhouettes, and after 500 meters pitch darkness sets in. From this moment begins the possessions of those who are indifferent to light and warmth.
It is at this depth that you can find a polychaete worm, which drifts from place to place in search of profit. In the light of the lamps it shimmers with all the colors of the rainbow, the word is made of silver plates. There is a row of tentacles on its head, thanks to which it orients itself in space and senses the approach of prey.
But the worm itself is food for another inhabitant under water world - angelfish. This amazing creature belongs to the class gastropods and is a predator. It gets its name from the two large fins that wrap around its sides like wings.
If you go even deeper, you can stumble upon the queen of jellyfish. Hairy Cyanea, or Lion's Mane- the largest representative of its species. Large individuals reach 2 meters in diameter, and their tentacles can stretch almost 20 meters.
Who else lives at the bottom of the ocean? This is a squat lobster. According to scientists, it can adapt to life even at a depth of 5 thousand meters. Thanks to its flattened body, it can easily withstand pressure, and its long legs allow it to move along the muddy ocean floor without any problems.
Deep-sea fish representatives
Over hundreds of thousands of years of evolution, fish living on the ocean floor have been able to adapt to existence without sun rays. Moreover, some of them have even learned to produce their own light.
So, at around 1 thousand meters he lives angler. There is a process on its head that emits a slight glow that attracts other fish. Because of this, it is also called the “European anglerfish”. At the same time, it can change its color, thereby merging with the environment.
Another representative deep sea creatures is a blob fish. Her body resembles jelly, which allows her to transfer pressure to great depth. It feeds exclusively on plankton, which makes it harmless to its neighbors.
At the bottom of the oceans lives a stargazer fish, the second name is the celestial eye. The reason for this pun was that the eyes are always directed upward, as if looking out for the stars. Her body is covered poisonous thorns, and near the head there are tentacles that can paralyze the victim.
Most people associate the ocean with whales, dolphins and sharks. However, in deep waters lurking creatures much more terrible and bizarre
Translation for – Sveta Gogol
1. Horned box
This cute creature very similar to Pokemon. However, sensing danger, the fish begins to secrete a deadly toxin.
2. Mediterranean tarsier
Their distinctive feature are disproportionately large pectoral fins. Contrary to their name, they cannot fly.
3. Ophiura
This is one of the most wonderful creatures that can be found in the sea. In addition, the life expectancy of brittle stars is 35 years, which characterizes them as a very hardy species.
4. Red glowing jellyfish
In order to lure prey, the jellyfish has tentacles that flash red. But the fact that this is the first known to science an invertebrate creature capable of emitting the color red.
5. Black Crookshanks
He is also called the “great glutton” because... he can eat fish twice his size and ten times his weight. Sometimes he swallows fish so large that they are not digested until complete decomposition due to which gases are formed and the crabbill floats to the surface.
6. Common sea dragon
The animal, which is depicted on the coat of arms of the Australian state of Victoria, is found only in the eastern part Indian Ocean. It can reach 45 centimeters in length. In fact, the dragon is a relative of the seahorse.
7. Cancerscorpio
Racoscorpions or eurypterids are the largest extinct order of arthropods that ever lived on earth. Fossils containing their remains have been found all over the world. Even though this photo is photoshopped, it gives you an idea of what these creatures would actually look like.
8. Tongue-Eating Woodlice
9. Fish with a human face
However, the similarities do not end there: some individuals even have eyes and ears that are shaped like humans.
10. Speckled Stargazer
This fish is certainly not the nicest creature you can find in the ocean. Burying itself in the sand, it waits to attack when the victim swims nearby.
11. Brachiopod
This representative of the bat family grows up to 10 centimeters. Its bait, unlike most anglerfish, does not glow, but releases an enzyme that lures the prey.
12. Axolotl
This neotenic salamander is close to extinction. However, scientists are showing great interest in it due to its ability to regenerate limbs. The axolotl feeds on worms, insects and small fish.
13. Moon fish
Is the heaviest of all known bony fish: average weight adult can reach 1 ton. She mainly feeds on jellyfish.
14. Blue Dragon
Also known as Glaucus atlanticus, it is a species of gastropod in the order Nudibranch. Swallowing a bubble of air, which is subsequently stored in its stomach, it floats upside down on the surface of the ocean.
15. Sea butterfly
The most common gastropod mollusk found in the ocean. As a result of evolution due to higher level acidity, the sea butterfly formed a calcified shell, shaped like a shell.
16. Hairy crab
Better known as "Kiwa hirsuta". This creature lives in hydrothermal vents at the bottom of the ocean. Males prefer warmer water, while females and juveniles prefer colder water.
17. Rag-picking seahorse
Representatives of this species of fish have their entire body and head covered with processes that imitate algae, which serves as a kind of camouflage. In addition, the raghorse is the maritime emblem of the state of South Australia.
18. Skeleton Shrimp
Thanks to its filamentous body and thin limbs, it can disappear among algae, hydroids and bryozoans. It is also called "ghost shrimp".
19. Sparkling Squid
And although he looks like common squid, representatives of this species grow up to seven and a half centimeters in length and die a year after their birth. In Japan it is mined in industrial scale. After a storm, when squids wash ashore, they literally illuminate coastline, which is why there is great interest in them.
20. Carpet shark
If you look at the photo, it becomes clear why it was called that. And although not all representatives of this species are similar to a carpet, some are extremely similar.
21. Angelfish
Also known as the "warty anglerfish". Oddly enough, this fish does not swim, but rather moves along the ocean floor. Its modified fins closely resemble human hands.
22. Porpoise
These strange creatures They live at depths of over a thousand meters, in particular on the deep plains of the Pacific, Indian, and Atlantic oceans. Some related species live in Antarctica.
23. Predatory Sponge
At first glance, you won’t understand that this is a carnivorous creature. In 2012, it was discovered by a group from the Monterey Bay Aquarium Research Institute. The sponge lives at depths of up to several kilometers below sea level. Its menu includes crustaceans and other crustaceans.
24. Living stone
It is a delicacy in Chile. WITH close range it resembles an organ system that feeds on microorganisms by absorbing water.
25. Pike blenny
This fish is extremely aggressive. To find out who is more important, the males open their mouths wide and press their lips to each other. The one whose mouth is larger wins.
Today I propose to look at what fish live on the bottom of the world's oceans, you know many of them, but I think you will be interested in learning more about them. who is too lazy to read in the first video everything is there)))
I hope you like it!http://www.youtube.com/watch?feature=player_embedded&v=BU7dD-4sbKM
Footbalfish - "soccer ball" fish
Footbalfish is a family of deep-sea fish of the order Anglerfish, found in tropical and subtropical waters of the world's oceans. Due to its round shape, reminiscent of a ball, in English-speaking countries the fish has been given the name “football fish.”
Like other anglerfish, this family is characterized by pronounced sexual dimorphism - female fish are large, almost ideally spherical in shape. The length of an adult female can exceed 60 cm. Males, on the contrary, are very small - less than 4 cm, and the body is slightly elongated. Both males and females are dark in color - from reddish-brown to completely black.
Footbalfish was first discovered in the early 20th century while searching for flounder habitats. The habitat of these anglerfish begins at a depth of 1000 m and below. Fish are not very active.
Meshkorot
large deep sea fish, living in all oceans, with the exception of the North Arctic Ocean. Poorly studied.
The bagmouth should not be confused with the bagworm, which is much smaller in size and lives closer to the surface.
Sackmouth (lat. Saccopharynx) is the only known genus of deep-sea fish in the family Sackmouth. It lives at a depth of 2 to 5 km. Adult fish can reach 2 meters in length. Together with a huge mouth planted sharp teeth, a person sees the sack as a real monster from the depths.
The body of the fish is cigar-shaped, with long tail, which can be 4 times the length of the body. The mouth is large, strong and flexible, with teeth curved inside the mouth. The fish's skull is missing some bones, so it is easy for the bagmouth to open its mouth almost 180 degrees. Even the gills are not like the gills of other fish, and are located not on the head, but on the belly. At great depths there is not always enough food, so the fish has adapted to gorge itself for future use by swallowing more food own weight and size. Having eaten your fill of sack, you can go without food for a long time.
Unicorn comb fish. Unicorn crestfish
Unicorn crestfish - very rare little-studied fish, found everywhere at a depth of 1000 m. It received its name for the horn-like growth on the head.
Crestfish are inhabitants of tropical waters, living at great depths. They are characterized by the presence of a huge dorsal fin extending from the head to the tip of the tail. All of them have an extended thin body silver color. The most important “attraction” of some combs is the ink sacs, which allow the fish, in case of danger, to throw out a cloud of ink, confusing predators and allowing the fish to retreat.
Sticktail (Stylophorus chordatus)
The sticktail (Stylophorus chordatus) is a deep-sea fish with an elongated body and a long caudal fin, which makes up 2/3 of the total length of the fish. Lives in warm waters world ocean.
The sticktail lives at a depth of 300-800 m. At night, the fish rises closer to the surface, and returns back at night. The height of daily migrations can be 300 meters.
Sticktail is pretty rare fish, although there are no exact data on the population. The discovery of Stylophorus chordatus occurred in 1791 by the English zoologist G. Shaw, but the next time the animal was in the hands of scientists happened only a century later.
coal fish
Sablefish - deep sea commercial fish, living in the northern part of the Pacific Ocean, including Russia.
Lives coal on muddy seabed at a depth of up to 2,700 m. Predatory - hunts small fish, jellyfish, cuttlefish and krill. It grows up to 120 cm. An adult can gain weight of 50 kg.
Sablefish is a commercial fishery object. Fish is especially prized in Japan, where it is served in the most expensive restaurants fried, baked and smoked, and used to make sushi.
Trippod fish
Trippod fish is a deep-sea bottom-dwelling fish known for its long arms on which it “stands” on the bottom.
Truly a tripod fish unique fish. It has very long rays growing from the pectoral fins and tail. The fish relies on these rays when it “stands” at the bottom. The length of these rays can be 1 m, and the length of an adult fish is 30-37 cm. It lives in all oceans, with the exception of the Arctic Ocean, at great depths from 800 to 5,000 m.
The tripod fish spends most of its time standing on its arms on the seabed.
Observations of fish have shown that the eyes of Trippod fish are poorly developed and do not take part in the feeding process. In complete darkness they would not have helped. The fish uses its long front pectoral fins to locate prey. They act like hands, constantly feeling the space around them. Having caught an object and determined that it is edible, the tripod fish sends it directly into its mouth.
http://www.youtube.com/watch?feature=player_embedded&v=yOKdog8zbXw
Make a mistake
Oshibni are a family of deep-sea fish whose name comes from the Greek "ophis", meaning "snake". They are found in temperate and tropical waters of the world's oceans.
Bugs live near the bottom. Most of these fish were found at great depths of 2000 m and below. One of the species of bugs, Abyssobrotula galatheae, was caught at a record depth for bony fish - 8,370 m in the deep-sea trench "Puerto Rico" in Atlantic Ocean.
Unlike their closest relatives - fish from the Brotula family, bugs are not viviparous, but lay eggs. The small things that appear grow close to the surface, merging with the zooplankton that is abundant in the tropical region.
Let's look at some of the most interesting views more wrong.
Abyssobrotula galatheae
Pink cusk-eel
Giant Grenadier or Giant Grenadier
The giant grenadier or giant grenadier is a deep-sea fish from the order Gadidae, found only in the North Pacific Ocean. Has commercial value.
The giant grenadier is most often found in the cold waters surrounding Russia - the Sea of Okhotsk, the coast of Kamchatka, near the Kuril and Commander Islands. Here it is known as the "little-eyed longtail" or "little-eyed grenadier", although in other countries it is commonly called the giant grenadier.
The size of the fish is truly gigantic compared to other deep-sea fish. Adults can reach 2 meters in height and weigh 20-30 kg. The maximum recorded age of an adult fish was 56 years, but it is believed that the giant grenadier can live even longer.
Lasiognathus - skilled fisherman
Lasiognathus is a fish from the genus of monkfish that lives in the Pacific and Atlantic oceans. Known among ichthyologists under the unofficial name “skillful fisherman”
Lasiognathus got its nickname as a fisherman for a reason. This deep-sea fish has an almost real fishing rod, with which it hunts other fish and invertebrates. It consists of a short fishing rod (basal bone), fishing line (modified ray of the dorsal fin), hook (large skin teeth) and bait (luminous photophores). This gear is truly remarkable. In different subspecies of Lasoignatus, the structure of the fishing rod can vary from short (up to the middle of the body) to long (exceeds the length of the body).
Bagworm or black eater
The bagworm is a deep-sea representative of perciformes from the suborder chiasmodidae. This small fish grows up to 30 cm in length and is found throughout tropical and subtropical waters.
This fish is called a sac swallower for its ability to swallow prey that is several times larger than itself. The fact is that it has a very elastic stomach, and there are no ribs in the stomach that would prevent the fish from expanding. Therefore, he can easily swallow a fish four times his length and 10 times heavier!
Macropinna microstoma- fish with transparent head.
Macropinna microstoma is a small deep-sea fish known for its transparent head, through which it sees with eyes located inside the soft tissues of the head. It lives in the cool waters of the Arctic and Pacific oceans, at a depth of over 500 meters.
This fish was first shown to the public quite recently, only in 2004. It was then that photographs of Macropinna microstoma were obtained. Before this, only zoologists showed interest in the fish, who speculated about how this fish, with such a strange visual mechanism, was able to see at great depths in almost complete darkness. And is she even capable? As we already know from the example of other deep-sea fish, vision at such depths is not of great importance.
http://www.youtube.com/watch?feature=player_embedded&v=RM9o4VnfHJU
Sea bat
Sea pipistrelles - a family of deep-sea bottom fish, adapted in a special way for life under high blood pressure. They practically cannot swim, moving along the bottom on their modified fins, which have become similar to the legs of land animals.
Sea pipistrelles live everywhere in the warm waters of the world's oceans, without swimming into the cold waters of the Arctic. As a rule, they all stay at depths of 200 - 1000 meters, but there are species of pipistrelle bats that prefer to stay closer to the surface, not far from the shores. People are quite familiar with pipistrelle bats, which prefer surface waters.
sea slug
The sea slug is a deep-sea fish species that, together with the bassogigas, are the deepest-sea fish on the planet. In 1970, sea slugs were discovered at a depth of 8 km.
http://www.youtube.com/watch?feature=player_embedded&v=w-Kwbp4hYJE
Cycloton
Cycloton is a widespread, medium-sized deep-sea fish of the Gonostomidae family. Found everywhere at depths from 200 to 2000 m. Cycloton - essential element the food chain various deep-sea and valuable commercial fish.
Cycloton is a fish that most his life drifts along with the ocean currents, unable to resist them. Only occasionally do they make small vertical migrations.
Drop fish.
The Blobfish is a deep-sea fish that lives in the deep waters near Australia and Tasmania. Extremely rare in humans and considered critically endangered.
Grows up adult fish up to 30 cm. It lives at depths of 800 - 1,500 m. The body of the fish is a watery substance with a density less than that of water.
http://www.youtube.com/watch?feature=player_embedded&v=SyodDVT1A40
Opisthoproct.
Opisthoproctus (Barreleye) is a deep-sea fish, also known as “ghost fish”. It is not large and very interesting fish. Scientific name Opisthoproctidae comes from the Greek opisthe ("behind", "behind") and proktos ("anus").
Opisthoproct lives at great depths up to 2,500 m in all oceans, with the exception of the Arctic. Appearance they have a unique look that prevents them from being confused with other deep-sea fish.
Sabertooth
Sabertooth is a deep-sea fish that lives in tropical and temperate zones at depths from 200 to 5,000 m. It grows up to 15 cm in length, reaching 120 g of body weight.
Saber teeth grow quite slowly. Scientists suggest that the fish can reach 10 years of age.
Hatchetfish
Hatchetfish are deep-sea fish found in temperate and tropical waters of the world's oceans. They got their name from the characteristic appearance body, reminiscent of the shape of an ax - a narrow tail and a wide “axe-body”
Most often hatchets can be found at depths of 200-600 m. However, they are known to be found at depths of 2 km.
Ghost shark or sea chimera
Marine chimeras are deep-sea fish, the oldest inhabitants among modern ones. cartilaginous fish. Distant relatives of modern sharks.
Chimeras grow up to 1.5 m, however, in adult individuals, half of the body is the tail, which is a long, thin and narrow part of the body.
These fish live at very great depths, sometimes exceeding 2.5 km
Deep sea anglerfish
The deep-sea anglerfish is a deep-sea fish from the order Anglerfishes. They live at great depths of the World Ocean, preferring to stay up to 3 km. from the surface of the water.
Female anglerfish feed on other deep-sea inhabitants - hauliods, hatchet fish and
The selection presents a wide variety of living creatures that inhabit the depths of the sea: strange and unusual, creepy and frightening, colorful and incredibly cute. Many of them were opened quite recently.
Marine "flycatcher"
These shell-predators live in deep-sea canyons near California. In terms of their hunting method, they are somewhat similar to carnivorous plants; they attach themselves to the bottom and calmly wait until the unsuspecting prey swims into the gaping mouth. This way of eating prevents them from being too picky about food.
Shark pedestrian
It was discovered off the coast of Halmahera Island (Indonesia). the new kind a shark that “walked” along the bottom in search of prey, exactly like a lizard. Unusual fish a relative of the bamboo shark, it grows up to 70 cm in length. She hunts mainly at night, and her dinner is small fish and invertebrates. And, by the way, this is far from the only fish that “walks” along the seabed. Representatives of the bat and lungfish families can walk on fins.
Christmas tree
Lovers marine fauna and divers call this the colorful inhabitants of the Pacific and Indian Oceans. It's actually a tubular polychaete sea worm, his Latin names– Spirobranchus giganteus.
Neither fish nor...
This is a mollusk and it does not fit at all into the idea of what gastropods should actually look like. Tethys fimbria are quite large, about 30 cm long, their almost shapeless translucent body is decorated with bright, irregularly shaped processes. Tethys are common in the waters of the Atlantic and Pacific Oceans, where they slowly glide along the seabed.
Pugaporcinus
If there was a competition for the title of “weirdest worm,” Pugaporcinus would easily beat out all the other participants. These unusual inhabitants of the ocean depths are better known in narrow circles as “flying buttocks”. Their existence became known only recently, in 2007. The creature is no larger than a hazelnut.
Tripod fish
A striking distinctive feature of this fish is its long, thin pectoral fins, with which it rests on the seabed and stands in anticipation of prey. It is not surprising that the name of this fish is Brachypterois grallator or simply tripod fish. Scientists still know little about them, since the creatures live at depths from 1000 to 4500 meters. The length of the fish is about 30-35 cm.
Thaumatikht Axel
These representatives of the order of anglerfish were discovered not so long ago, and were named after the Danish prince Christian Axel, who died in the middle of the last century. Axel is considered one of the strangest and most unattractive creatures, although not many people like to live at a depth of 3500 meters (just remember the Internet star - the blob fish). They reach a length of 50 cm, or rather, scientists were able to meet fish of this size. In the creature's mouth there is a special gland with glowing bacteria. To start hunting, the fish simply needs to open its mouth and potential victims will swim towards the light source.
Moonfish
Bat
A fish from the ray-finned family of the same ugly anglerfish. Widely distributed in warm tropical and subtropical seas, except the Mediterranean. Lives at depths of up to 100 meters.
Sea spiders
These harmless creatures live in almost all waters with normal salinity. Like ordinary spiders, their body is relatively small, from 1 to 7 cm, but their leg span can be up to 50 cm. There are about 1000 species of sea spiders.
Mantis crab
This colorful creature has unique vision and moves with incredible speed, but most of the time the true predator hides in coral reefs at depths from 2 to 70 meters. Sometimes it is called a fighting cancer or even a terrorist cancer. Officially, he is a mantis crab. Why becomes clear at first glance. The segments of the jaws of these crayfish are bent at an angle, like those of mantises. Just like insects, crayfish are able to instantly throw a limb forward, much faster than a person blinks.
Giant underwater pipe
Pyrosomes or fireworms are tiny sea creatures somewhat similar to jellyfish, they are only a few millimeters long, but when united in a giant colony, they create huge translucent tubes up to several meters long. It’s also worth remembering that they are capable of bioluminescence. Imagine a huge underwater tube glowing in the night - a breathtaking sight.
The underwater world is mysterious and unique. It contains secrets that have not yet been solved by man. We invite you to get acquainted with the most unusual sea creatures, plunge into the unknown thickness of the water world and see its beauty.
1. Atoll Jellyfish (Atolla vanhoeffeni)
The unusually beautiful Atoll jellyfish lives at such depths where it does not penetrate sunlight. In times of danger, it can glow, attracting large predators. Jellyfish do not seem tasty to them, and predators eat their enemies with pleasure. 
This jellyfish is capable of emitting a bright red glow, which is a consequence of the breakdown of proteins in its body. As a rule, large jellyfish are dangerous creatures, but you should not be afraid of the Atoll, because its habitat is where no swimmer can reach.
2. Blue Angel (Glaucus atlanticus)
This very tiny mollusk rightfully deserves its name; it seems to float on the water surface. To become lighter and stay at the very edge of the water, it swallows air bubbles from time to time. 
These unusual creatures have an outlandish body shape. They are blue above and silver below. It is not for nothing that nature has provided such camouflage - the Blue Angel remains unnoticed by birds and sea predators. A thick layer of mucus around the mouth allows it to feed on small, poisonous sea creatures.
3. Harp sponge (Chondrocladia lyra)
This mysterious one sea predator has not yet been sufficiently studied. The structure of its body resembles a harp, hence the name. The sponge is inactive. It clings to the sediment of the seabed and hunts by gluing small underwater inhabitants to its sticky tips. 
The harp sponge covers its prey with a bactericidal film and gradually digests it. There are individuals with two or more lobes, which are connected in the center of the body. The more blades, the more food the sponge will catch.
4. Dumbo Octopus (Grimpoteuthis)
The octopus got its name because of its resemblance to the Disney hero, Dumbo the elephant, although it has a semi-gelatinous body of rather modest size. Its fins resemble elephant ears. He waves them around as he swims, which looks quite funny. 
Not only the “ears” help to move, but also the peculiar funnels located on the octopus’ body, through which it releases water under pressure. Dumbo lives at very great depths, so we don’t know much about him. Its diet consists of all kinds of mollusks and worms.
Octopus Dumbo
5. Yeti Crab (Kiwa hirsuta)
The name of this animal speaks for itself. A crab covered with white shaggy fur actually resembles Bigfoot. It lives in cold waters at such depths where there is no access to light, so it is completely blind. 
These amazing animals grow microorganisms on their claws. Some scientists believe that the crab needs these bacteria to purify the water from toxic substances, others suggest that the crabs grow their own food on the bristles.
6. Short-snouted pipistrelle (Ogcocephalus)
This fashionable fish with bright red lips can't swim at all. Living at a depth of more than two hundred meters, it has a flat body covered with a shell and fin-like legs, thanks to which the short-snouted bat slowly walks along the bottom. 
It obtains food using a special growth - a kind of retractable fishing rod with an odorous bait that attracts prey. The discreet coloring and spiked shell help the fish hide from predators. Perhaps this is the funniest animal among the inhabitants of the world's oceans.
7. Sea slug Felimare Picta
Felimare Picta is one of the species sea slugs, living in the waters of the Mediterranean. He looks very extravagant. The yellow-blue body seems to be surrounded by a delicate airy frill. 
Felimare Picta, although a mollusk, does without a shell. And why does he need her? In case of danger sea slug has something much more interesting. For example, acidic sweat that is released on the surface of the body. It's really bad luck for anyone who wants to treat themselves to this mysterious mollusk!
8. Flamingo tongue clam (Cyphoma gibbosum)
This creature is found on the western coast of the Atlantic Ocean. Having a brightly colored mantle, the mollusk completely covers its plain shell with it and thus protects it from negative influence marine organisms. 
Like common snail, “Flamingo tongue” hides in its shell in case of impending danger. By the way, the mollusk received this name due to its bright color with characteristic spots. It prefers poisonous gongonaria as food. While eating, the snail absorbs the poison of its prey, after which it becomes poisonous itself.
9. Leafy sea dragon (Phycodurus eques)
The sea dragon is a true virtuoso of mimicry. It is all covered with “leaves”, which help it appear invisible against the backdrop of the underwater landscape. It is interesting that such abundant vegetation does not help the dragon move at all. Only two tiny fins located on its chest and back are responsible for its speed. The leaf dragon is a predator. It feeds by sucking prey into itself. 
Dragons feel comfortable in the shallow waters of warm seas. And also these sea inhabitants They are reputed to be excellent fathers, because it is the males who bear the offspring and take care of them.
10. Salps (Salpidae)
Salps are invertebrates Marine life, which have a barrel-shaped body, through the transparent shell of which internal organs are visible. 
IN ocean depths animals form long chains-colonies, which are easily broken even by a slight wave shock. Salps reproduce by budding.
11. Piglet squid (Helicocranchia pfefferi)
This strange and little-studied underwater creature resembles “Piglet” from the famous cartoon. The completely transparent body of the piglet squid is covered with pigment spots, the combination of which sometimes gives it a cheerful appearance. Around the eyes there are so-called photophores - organs of luminescence. 
This mollusk is leisurely. It's funny that the piggy squid moves upside down, which is why its tentacles look like forelocks. He lives at a depth of one hundred meters.
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