"......Boom!" A huge sound of waves sounded, and then, a huge black shadow suddenly enveloped the fishing boat where Leng Xin, Xu Chang and Xu Jie were located.

Although this figure was now more than a hundred meters away from Leng Xin and them, it was enough for Leng Xin to see this huge figure clearly.

This huge figure is about twenty-five meters long, about four or five meters wide, and the color of the body is the color of the ocean, therefore, the concealment function of these sand tiger sharks in the ocean just now is very strong, if it weren't for the sand tiger sharks just jumped out of the sea, Leng Xin would not have known that the volume of the sand tiger sharks in the martial arts secret realm would be so large.

In addition to these, the body of the sand tiger shark is even more mottled, which is the medal of the sand tiger shark, the medal of fighting.

Looking at these wounds on the sand tiger shark, Leng Xin, Xu Chang, and Xu Jie know very well that this sand tiger shark will definitely not experience less battles, and what kind of strength will a sand tiger shark that has survived such a cruel battle have, Leng Xin, Monkey, and Xu Chang and Xu Jie all looked at each other, and in each other's eyes, they all saw shock.

After seeing the huge figure of the sand tiger shark, Leng Xin, Xu Chang, and Xu Jie's eyes almost popped out, the size of this sand tiger shark was too big, it was beyond their imagination.

However, soon, Leng Xin, Xu Chang, and Xu Jie were relieved, this is a secret realm of martial arts, growing in such a magical place, the originally small sand tiger shark has grown into such a huge one, it is also understandable.

Even those beasts in the forests of the Jade District are comparable in size to their counterparts on the earth. It's also a lot bigger. The best examples of this are pheasants, ducks, hares, and so on.

Their volume in the Martial Arts Secret Realm is three or four times larger than that on the earth, and. The resistance of these wild creatures is several times stronger than that of their counterparts on the earth, and if you are not careful, you will really be hurt by these wild creatures!

"Big brother, we're ...... now. Xu Jie couldn't say it anymore, but the shock in his eyes. There is also that painful look, Xu Chang sees it clearly, Xu Chang knows. This is because Xiao Jie is now frightened by the huge body of the sand tiger shark, and Xiao Jie has lost the belief in survival.

"Xiaojie, don't be scared by the sand tiger shark, we are the sons of fishermen. We grew up in storms. Consider the powerful storm we had when we were five years old when we went fishing with our father, and by that time our fishing boat was half in the sea, but we didn't get home safely.

Even when we grew up, we didn't have a dozen storms, but. We finally made it home safely. We've all been through such powerful, desperate storms so many times. Now it's just a slightly larger sand tiger shark, Xiaojie, are you scared?!

Xiaojie, if just one sand tiger shark knocked you down, would you still be worthy of being a fisherman's son and a son of the sea?

Xiaojie, we are the sons of the sea, no matter how dangerous things are, we will not be afraid, Xiaojie, show our self-confidence in fighting the storm, we will definitely be able to or go back. ”

The experience of fighting the storm for a long time has tempered Xuchang's strong heart, so even if the danger they encounter now is beyond their imagination, Xuchang still has not fallen, and he is still cheering Xu Jie up.

After listening to Xu Chang's words, Xu Jie quickly recalled the dozen or so storms he had experienced since he was a child, and the power of those storms was much more powerful than the power of the current sand tiger shark.

In the face of such a powerful storm, I was able to get out safely, and now I just want to give up in the face of some sand tiger sharks, I really ...... Thinking of this, Xu Jie began to secretly spit on his timidity just now.

"Big brother, you're right, I can win in the face of such a powerful storm, now it's just some sand tiger sharks, I won't be afraid, big brother, let's go home safely!"

Xu Jie stretched out his right hand to Xu Chang with a confident face, and he defeated the demon called 'fear' in his heart. Seeing the confidence on Xu Jie's face, Xu Chang also showed a smile on his face, and the confident younger brother was back.

"Okay, Xiaojie, let's go home safely together. Xu Chang's right hand hit Xu Jie's right hand lightly, and then he held Xu Jie's right hand tightly, and the brothers' eyes were full of fighting spirit!

...............................................................................................................

"This ...... This...... Isn't it too exaggerated, big brother, I'm not dreaming!" The monkey's face was also unconfident, and he even bit his right hand heavily: "Oops......!"

The sharp pain was very clear to the monkey that what he was seeing now was the truth, not what he was dreaming. "Big brother, are the fish we just prepared enough? I don't think the fish we prepared are enough for this sand tiger shark to swallow in one bite, so the calculation we just made will not be in vain. ”

"Hmph......!" the monkey's words made Leng Xin is face ache, and the muscles on his face even twitched a few times.

However, soon, these gaffes on Leng Xin's face disappeared, as an old-big, Leng Xin didn't want to lose his temper in front of his little brother, old-big, he had to have the demeanor of old-big!

"I didn't expect the size of these sand tiger sharks to be so big, we really miscalculated this time, I thought that these sand tiger sharks would be the size of the sand tiger sharks on the earth, but I didn't expect the sand tiger sharks in the martial arts secret realm to be so big, this ...... This ......., this is simply a combination of a sand tiger shark and a whale shark, we really shouldn't underestimate any creature living in the secret realm of martial arts. When he said this, Leng Xin's face was full of helplessness.

As the sand tiger sharks approached the fishing boat, they did not show their form at all. These sand tiger sharks only expose their dorsal fins to the surface of the sea, and their bodies are hidden under the seawater, plus the skin of these sand tiger sharks is ocean-colored. Once the sand tiger shark is hidden in the ocean, the protective color hides the huge size of the sand tiger shark very well.

And the monkey can judge that these sharks are sand tiger sharks, relying on the special dorsal fin of the sand tiger sharks, so the number of fish baits prepared by the monkeys and Leng Xin is also calculated according to the volume of those sand tiger sharks on the earth, but. Now their meticulous preparation can be said to be a complete failure.

Leng Xin and the monkey really couldn't imagine that these sand tiger sharks would be so huge after they really revealed their figures. This size is comparable to the whale shark, which is the largest shark on the planet, and the size of the sand tiger shark is as large as the whale shark. Thinking of this situation, Leng Xin and the monkey's faces were full of wry smiles.

Whale shark (scientific name: Rhincodontypus). Also known as whale shark, tofu shark, big shark. It belongs to the family of cartilaginous fishes and is the largest shark in the world. To date, the largest actual size recorded by biologists is 21 meters long and weighs 21.50 tons, with reports of other larger individuals not confirmed.

Whale sharks are the only member of the family Rhincodontidae (known as Rhinodontes until 1984) and the genus Whale Sharks, which biologists believe appeared about 60 million years ago.

Whale sharks live in tropical and temperate seas and can live up to 70 to 100 years. Although whale sharks have very wide mouths. However, they are filter feeders that prey mainly on small plants and animals (including plankton). But the British Broadcasting Corporation's nature documentary "Planet Earth" filmed a whale shark preying on a school of small fish.

Biologists first identified whale sharks in April 1828 based on individuals caught in Table Bay, South Africa. Andrew Smith, a British military physician in Cape Town, described the shark's characteristics further the following year, and then published more details about the shark in 1849.

The name "whale shark" comes from fish biology, which means that whale sharks are as large as whales, and they, like many whales, are filter feeders.

The whale shark has an elongated and coarse body, with two distinct skin crests on each side, the eyes are small, without transient membranes, the mouth is huge, the upper and lower collars have lip folds, the teeth are small and many, conical, the water spray holes are small, located behind the eyes, the carp holes are 5, broad, the gill rakers are, divided into many small branches, forming a filtered port, the dorsal fin is 2, the second dorsal fin is opposite the brachial fin, the pectoral fin is broad, the caudal fin is forked, the body is grayish brown or blue-brown, with many yellow spots and vertical transverse lines.

The body is cylindrical or slightly longitudinally flattened, the lateral ridge of the body is obvious, the head is flat and broad, the snout is short, the lateral position, the gill slit is extra-large, with a unique filtering structure, including a thin plate that crosses each gill slit, and the gill arc has many rakes, which are divided into many small branches, and cross into a spongy filter. Mouth fissure large, anterior, transverse, lip fold at the corners of the mouth, no orifonasal groove.

The whale shark is probably the shark with the largest number of teeth, its mouth is like a huge filter, and its mouth has thousands of tiny, hook-like teeth, each about 2~3 mm long, arranged in 11~12 rows, arranged in the upper and lower jaws.

These teeth are replaced at least twice a year. If the whale shark had a lifespan equal to that of a human, it would indeed be the animal with the most teeth, but it is still a mystery whether it actually uses so many teeth.

Shark teeth are regularly and loosely embedded in muscle fibers that act as gums. In the process of replacing the old with the new, the old teeth will continue to bleed and be replaced by new teeth.

Whale sharks each have up to 300 identical teeth in each of their upper and lower jaws, with tiny teeth with only one small tip.

Extant whale shark tooth fossils have been found in the Oligocene strata of South Carolina, the Miocene strata of Lanci and North Carolina, and the Miocene to Miocene strata of Maryland and Virginia.

In 2001, Purdyetal also found fossilized teeth of whale sharks similar to the Pungo River sediment, which belong to the Miocene epoch. The fossilized tooth is very small, only 6 mm tall, and the lower part of the tooth is strong below the side and the crown on the upper part is slim.

The lingual surface of the crown is perpendicular to the root of the tooth, the cusp is smooth and elongated with serrations, and the cusp extends posteriorly and inferiorly. The root is bifid, the elongated root is compressed laterally, and there are obvious vegetative holes. The upper part of the root of the tooth is covered with obvious enamel, and the fossilized teeth of this whale shark analogue Rhiniodoncftypus are basically not much different from the extant whale shark tooth fossils.

Few marine creatures live as long as whale sharks, and even the megalodons, which dominated the early Miocene to the Middle Miocene, did not live as long as whale sharks.

Since the Oligocene, whale sharks have endured long-term threats from large porposharks, other predatory sharks, sperm cetaceans and later black cetaceans, as well as competition from new cetaceans and other baleen cetaceans, but most of these sea monsters have been wiped out by time, and only the whale shark is still majestic.

The first dorsal fin of the whale shark is much larger than the second dorsal fin, the pectoral fin is extra-large, slightly narrower, sickle-shaped, and the anal fin is the same size as the second dorsal fin. The base is also opposite, the caudal fin is forked, the upper tail fork is almost twice as long as the lower tail fork, and is composed of the middle and rear parts of the upper and lower lobes, and the lower tail fork is protruding from the front of the lower lobe. The body is grayish-brown to blue-brown, with many white spots and horizontal stripes scattered on the sides of the body, and these markings are arranged in a checkerboard shape.

Whale sharks live in the pelagic pelagic region of the warm oceanic sea zone and are mild. Don't attack people. Whale sharks swim slowly and often float on the surface of the water to bask in the sun. Feeds on plankton, crustaceans, molluscs and small fish, and does not eat much.

Scientists realize. Whale sharks are not slow-moving animals, as previously believed, in fact they swoop down quickly like eagles that swoop down from a height. Dive into deep water.

IN THE DONSAL AREA OF THE FILIPINO MAID COUNTRY. It is a world-famous whale shark viewing area, and from March to May every year, there are a large number of wild whale sharks, which can be viewed by snorkeling in a local crab boat.

In addition, the Churaumi Aquarium in Okinawa, Japan, is home to three adult whale sharks, which is known as the largest aquarium in Asia.

Whale sharks feed on plankton, giant algae, krill and small autonoplankton, such as small squid and vertebrates. Their teeth do not serve the purpose of foraging, and in fact they are not very large. Instead: the whale shark sucks in a mouthful of water and closes its mouth. The water is then drained from the gills. During the brief period between the closure of the mouth and the opening of the operculum, plankton are trapped by the dermaldenticles that line the gills and throat.

This filter-like organ is a unique variation of the gill raker. Anything larger than 2 to 3 mm is prevented from passing through the guò, the liquid is expelled, and anything blocked by the filter between the gill bars will be swallowed by the whale shark.

Whale sharks have been observed to "cough" behavior, presumably as a way to clean up food accumulated in gill rakers.

Whale sharks congregate on the reefs of the Belize Caribbean to feed on the eggs of the giant Brazilian snapper, which appear between the full moon and the quarter moon in May, June and July.

Whale sharks are active filter feeders that rely on their sense of smell to attack targets such as plankton or fish. Whale sharks do not need to swim forward to feed, and they are often observed bobbing up and down to suck in seawater and expel it for food.

This is the exact opposite of basking sharks, which are gentle filter feeders and do not inhale seawater, they swim to force the water to pass through the gills, as was filmed in the British broadcaster's nature documentary Planet Earth, a whale shark preying on small fish.

Although whale sharks have huge bodies, they do not pose a heavy danger to humans. They are often used by scientists to educate society that not all sharks "eat people".

In fact, whale sharks have quite gentle personalities and will also frolic with divers.

There have been unconfirmed reports of whale sharks remaining stationary and turning their bodies upside down to allow divers to clean their abdomen of parasites.

Divers can swim with this huge fish without any danger, except for being inadvertently hit by the whale shark's huge tail fin.

Whale sharks have few natural predators, and human fishing is one reason for their declining numbers. Whale sharks are one of the targets of the aquaculture industry in several areas where they congregate seasonally.

Southeast Asia, especially the Treasure Island Bay area, is the main fishing area for whale sharks, and the whale sharks that are caught mainly eat their flesh, and sometimes cut off their fins to make zuò shark fins. In other places, although it is not a target for fishing, it can also be bycaught and is an endangered species.

In 1998, the Filipino countries banned all commercial hunting, trafficking, importation and export of whale sharks, while the three countries banned them in May 2001, and since 2003, the island has limited the number of whale sharks to 80 per year. Since 1 January 2008, a total ban on such commercial activities has been introduced.

The whale shark is listed in the IUCN Red List of Threatened Species, and the whale shark is in the vulnerable (UV) level, which has stepped into the threshold of threatened, and the species included in the IUCN Red List in the vulnerable level Chinese Wikipedia are cheetahs, white pheasants, white-lipped deer, golden snub-nosed monkeys, mandarin ducks, whooper swans, Familiar species such as the Great Bustard, most of which belong to the national first- or second-class protected animals, suggest that the survival status of the vulnerable whale shark also needs to be protected by the state administration to avoid further deterioration of the threatened status of the species.

In addition, according to the Washington Convention (CETIS) website, whale sharks are species listed in Appendix II of the Convention, and the Convention stipulates that species listed in Appendix II need to regulate their international trade transactions so as not to affect their survival.

The Chinese translation of the Washington Convention, which can be found on the website of the State Forestry Administration, does not oblige States parties to control domestic trade in species listed in the appendix. (To be continued......)

PS: Note: Thank you for the support of the two monthly passes of Datou 188, and the support of the monthly pass of the Golden Laurel Indecent Ceremony, thank you!

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