STINGRAY

Stingrays are found in warm and shallow waters of temperate seas. Most of their time are spent buried in sand and they move according to the tide.

ANALYSIS

The body is flat and it has a pectoral fin joined to the head.
The stingray's mouth, nostrils and gill slits are located under the belly while the eyes pro tude from its dorsal side.

They have an organ near the mouth that enables them to sense the natural electric charge of prey.
Most stingrays move by undulating their bodies like that of waves while others flap their sides like birds. They are about 6 to 14 feet in length depending on species.

The tail secrete venom which is used to against predators, they can kill humans too and the ancient Greeks dentists use the venom for anesthetics and even after death, their venom remains dead.

REPRODUCTION 

They breed during winter and the baby stingray develop inside the mother for 9 months feeding on the yolk in their egg sac. They also feed on the milk in their mother's uterus and when they are born, they are able to swim about and begin hunting with their mothers. 

BLUE-RINGED OCTOPUS

The blue ringed octopus is of 10 species and are the most deadly. Their common name comes from the bright blue rings that measure less than 2mm in diameter when alarmed. The body is 5cm long and the tentacles are 10cm. The mantle is usually rough in appearance covered by wrinkles.

While resting, the background colour is a brownish colour with patches. Their blue rings are not visible at rest and they have like  50 to 60 blue rings covering the dorsal.

They are found in the temperate waters of southern Australia. They feed on small crabs, shrimp, lobster, etc. They secrete two types of venom from two separate venom glands. One of the venom is used for hunting and the second one which is extremely toxic is used as self defence against predators. The venom is secreted into the octopus's saliva and poisons it's victim and once the predator is dead, the octopus consumes it with its beak like mouth.

They reproduce sexually, the male approaches the female and begins to caress her with its modified arm called hectocotylus, the male then climbs on the female's back and deposit spermatophores into the female's oviduct by inserting the hectocotylus into the female's mantle.
The female lays eggs and carries them under her tentacles until they hatch, the female then dies as she's unable to eat while carrying her egg. The male dies after mating.

Blue ringed octopus are not aggressive and avoids danger by blending into their surroundings. Human beings have been injured by stepping on it.

BARRELEYE FISH

The barreleye named after its eyes that are literally shaped like barrels has a unique quality which is its transparent head.

HABITAT
The barreleye lives at depths ranging from 600 to 800metres.

ANALYSIS
The species most distinctive feature is its transparent dome while lies just on top of its head through which the lenses of the fish can be seen.
Its eyes can be rotated to point either straight looking when feeding or upward looking when looking for food through its fluid filled transparent dome.

This picture shows the fish's eyes looking upward while the fish faces downwards.

Their size ranges from 15cm to approximately 45cm with a tiny mouth and large, flat fins which gives them the ability to move with great precision and stay motionless in water.

Picture source: MBARI
They also have green pigments in the eyes that helps them filter out sunlight coming directly from sea surface which enables them to spot other aquatic creatures that emit bioluminiscent lights.

In little or low light, the barreleye detects its prey by its silhouette. Courtesy of Bruce Robinson and Kim Reisenbichler from the MBARI observed that when prey is located, the fish's eye rotates like binoculars facing forward while changing into a vertical position to feed.

THE VIPER FISH

The fish known scientifically as chauliodus sloani can be easily recgonised by its large mouth and teeth that looks like that of a fangtooth fish. The enormous fangs don't fit inside the mouth so they protude outside. They live 200-500meters below water during the day and less than 200m at night mainly to feed on crustaceans and smaller fishes.

The fish has a dorsal spine that extends throughout the body which is equipped with photophore, a light emitting organ which it uses to attract its prey by flashing the lights on and off after which it performs its magic on the meal with its fangs.

There are also photophores along the side of the fish for camouflage and meal. The fish was once seen motionless in water luring it's meal by flashing those lights. They are found in the tropical waters and the little we know about them came from the catches made.
It is said that they reproduce sexually with the female carrying the eggs.
What a rare deep sea predator

GOBLIN SHARK

Mitsukurina owstoni also known as goblin shark is a fan of darkness, it does not like sunlight maybe that's why some people refer to it as vampire sharks. I do refer to it as seanicorn from the word unicorn. They feed on creatures deep down in the ocean like crabs, sting ray, etc.

When approaching prey, their jaw goes out and with a sucking motion they draw the into their mouths with powerful teeth waiting to crunch!  The Goblin Shark’s long, slender, exceptionally sharp fang-like teeth are connected to their protruding yet extremely soft and delicate jaws.

The jaws can protrude during eating,giving the goblin a very unusual look. This elongated snout may contain electrosensory canals. Below is a video on our guest...

THE TOUNGE-EATING LOUSE

Cymothoa exigua, or the tongue-eating louse, is a parasite of the family  Cymothoidae. This parasite enters fish through the gills, and then attaches itself to the fish's tongue. The female attaches to the tongue and the male attaches on the gill arches beneath and behind the female. Females are 8–29mm and 4–14mm in maximum width. Males are approximately 7.5–15mm and 3–7mm wide. The parasite severs the blood vessels in the fish's tongue, causing the tongue to fall off. It then attaches itself to the stub of what was once its tongue and becomes the fish's new tongue.

They cause loss of blood by using their claws to extract blood from the host after which they replace the host's tongue with their body. *weird*  

It reproduces sexually,  It is likely that juveniles first attach to the gills of a fish and become males. As they mature, they become females, with mating likely occurring on the gills. If there is no female present, within a pair of two males, one male can turn into a female after it grows to 10mm. The female then makes its way to the fish's mouth where it uses its front claws to attach to the fish's tongue. 

It is of no record that this creature is dangerous to man, except if caught alive which may cause it to bite.

WHITE ANEMONE

I guess I have to post beautiful things too.

The sea anemone got its name from the flower called anemone flower. They are invertebrates with no skeleton, they are polyps that spend most of their times attached to rocks at sea bottom waiting for that unlucky fish to pass so that it could be entangled in its poisonous tentacles. The body is made up of tentacles all around with the mouth at the center. These tentacles are triggered by the slightest of touches.They shoot filament into the prey that release the toxins which after, they use their tentacles to draw them into the MOUTH. Although the are poisonous to other fishes, some species are known to be highly toxic to human, some even lethal to human because of the level of their toxin.

THE BLOBFISH

The blob fish to me still looks like an immature foetus.  Blobfish are typically shorter than 30 cm. They live at depths like 1,200 m (3,900 ft) where the pressure is greater than that of sea level, which would likely make gas bladders inefficient. Instead, the flesh of the blobfish is primarily a gelatinous mass with a density slightly less than water; this allows the fish to float above the sea floor without expending energy on swimming. Its relative lack of muscle is not a disadvantage as it primarily swallows edible matter that floats in front of it such as deep-ocean crustaceans. They have been voted as the world most fish but I've seen quite a reasonable specie that looks normal. 

Blobfish don't bite and they are ok in water. It has never been seen that blobfish was eaten because the moment it touches the earth, it turns to a blob.

In case you are thinking of keeping blobfish as pet,  no one has ever caught it alive except you provide a tank with high pressure. 

FANGTOOTH

One look at this fish gives me the #wow! Really look. Could fishes like this exist? The truth is there are scarier fishes than this.

Fangtooths are beryciform fish of the family Anoplogastridae. The fangtooth is of two types, the common one being about 18cm long and found in the Pacific and Atlantic ocean.

A look at those eyes expresses an evil, gruesome character just like zoom when he's in the mask but I bet it's not that fast. *hmmm*

They consume anything they bump into, even things so large that it affects breathing so they use their fins to wave water onto their gills from behind and breathe.
It seems as if our guest isn't a fan of bright light and only comes up to the surface to feed at night. *werewolf? * *that's lame*

The offsprings are quite different from the adults that they were once thought to be a different species! They look grumpy, with weird spikes protuding out of their head with small teeth. They eat tiny crustaceans too and very soon they grow those big set of tooth which barely fits the mouth. I guess it's one of the reasons the mouth doesn't close fully tho, you don't want to end up with a pierced skull. *lol*