<h1 class="ql-align-center" >1, Gabrin shark</h1>
Gabrin sharks live in the dark deep sea (250 m deep) and are very insidious, so they are very rare.
This marine creature has a large shovel-shaped nose snout that helps them detect prey. However, the rarest feature of the Gabrin shark is the protruding chin.
Most of the time it "retracts" its chin to the same plane as its eyes, but when the prey approaches, the chin with razor-sharp teeth inside protrudes forward like a pair of pliers, while using its tongue to suck the prey into the mouth.
Another rare feature of the Gabrin shark is its pink skin and blue highlights. Capillaries close to the surface of the skin are exposed through the transparent skin, giving them a unique appearance color.
2. Long-snout sawshark
The long snout sawshark is one of the six largest sawshark species, about 4.5 feet (1.4 meters) long, and its long serrated mouth and sharp teeth form a line, forming 1/3 of the entire body length.
In addition, the long-snouted sawshark has long tentacles on both sides of its mouth, which can move freely and sense the vibrations and bioelectricity of the surrounding water body. In addition, these tentacles are very sensitive to touch and taste, which allows them to spot delicious prey hidden in the sand.
When the longnout sawshark finds prey, they will whip the prey with the longnose and even pierce each other.
3. Frilled shark
The frilled shark looks more like a giant eel or a deep-sea lizard. The most common habitat for this rare shark species is the waters off Japan.
In addition to their eerie size, another notable feature of the frilled shark is a pregnancy period of up to 42 months (the longest gestation period among vertebrates).
The frilled shark has 300 sharp teeth in its mouth and an expanded mouth that allows it to swallow prey half the size of its body.
4. Hammerhead shark
The hammerhead shark is also called the hammerhead shark, and its biggest feature is the head that resembles a hammer. Their eyes grow at both ends of the "hammer head" and have a 360-degree vertical vision, which means they can see both the upper and lower sides at the same time.
Hammerhead sharks are highly sensitive to the electric fields emitted by their prey. Although they have smaller mouths and teeth, they are relatively more flexible and able to swim at high speeds in the water.
5. Basking shark
With a weight of over 5 tons and a body length of 33 feet (10 meters), basking sharks are the second largest shark in the ocean (after the whale shark).
Basking sharks tend to open their mouths as they move through the water, using more than 5,000 gill rakers to filter 1.5 million liters of plankton per hour.
Although the basking shark swims freely at only 3 miles per hour, it tends to migrate thousands of miles and can dive to nearly 3,000 feet (900 meters) deep.
6. Megalomous shark
Megalomania are very rare and peculiar because they have only one family of their own: megalomaniaces.
These loose-bodied sharks swim very slowly, with soft fins and asymmetrical tail fins. Because it is so rare, scientists know very little about it.
Giant-mouth sharks, like basking sharks, are filter eaters and can reach a length of 18 feet (5.4 meters). They have luminous organs around their mouths, supposedly used to attract plankton.
7. Ghost shark
From its plow-shaped mouth to its silvery lower abdomen, the ghost shark is downright "unusually" beautiful. But the ghost shark is not a shark, but a cartilaginous fish of the cartilaginous fish order, belonging to the all-headed suborder.
They are 4 feet long (1.2 m) long and have a very distinctive nose covered with fine holes, which can sensitively detect the movement of surrounding water bodies and currents. The ghost shark has three tooth plates, the tooth plate of the lower jaw can be used for crushing, while the tooth plate of the upper jaw is sharp and serrated.