The sea dragon is naturally also included in the protection list, although this guy has also attacked and eaten a lot of people, but compared to the real man-eating sea monster Sea Demon Zhang, he is simply a kind and harmless guinea pig. Although Hong Long has entered the protection list, no one has found out where he is, and the people from the pharmaceutical companies are already looking for him like crazy. In fact, oceanographers are going crazy - they have obtained mysterious artifacts from the depths of the sea from an island where the sea dragon may have stayed, these artifacts are at least three thousand years old, and strangely similar to the products of any civilization on Earth.

Archaeologists have indeed discovered mysterious ruins in the deep sea, thanks to the discovery of avenue-like ruins by deep-sea robots, just as the sea dragon discovered the ruins of the deep sea. But the conclusion they found was completely different from what the archaeologist Hong Long found with the second knife - this so-called ruin has never been exposed to the sea!

This is the first time that human beings have discovered that there are civilized creatures on earth that may be as intelligent as humans, but it is a pity that scientists have not found any bones or living bodies of such creatures so far.

Now, there is a theory that has been put forward - it is very likely that there is a super civilization in the deep sea until now, and the so-called sea monsters such as sea dragons and sea demons are likely to be the "weapons" of that super civilization. Hong Long didn't know, and if he knew, he would definitely scoff.

Now that the sea dragon has fully recovered his physical strength, the forty-meter-long sea monster roams leisurely in the sea, and occasionally he will find that the sea above his head will have the shadow of fishing boats, but Hong Long no longer wants to attack those fishing boats - a stable life is good, there is no need to do much. There is plenty of food in this sea, and there is no need for sea dragons to attack fishing boats to get food.

"A big octopus. Hong Long didn't know that there was a terrifying sea demon in the South China Sea, but he still found traces of a large octopus in the sea where he was active. Not one or two, but more and more. Sea dragons don't know how many of these large octopuses there are - these octopuses are more than ten meters long with brachiopods, which can be considered a dangerous creature in the ocean. The big octopus is still Hong Long's food, and the sea dragon can easily tear through the tire-like octopus and eat it, but why is this octopus here? Hong Long finally found the answer.

At the bottom of the sea, sea dragons found giant sea crabs. It's not just long-legged crabs like spider crabs, there's even giant king crabs. Unlike what has been found in the past, these crabs are all extra-large models, at least the sea dragon saw a giant sea crab with a diameter of more than three meters just on the crab cover, and the thick pincers are larger than a person. These crabs are also very abundant and spread to the nearby seabed almost overnight. "Sooner or later, it will cause ecological disaster!" is the idea of the sea dragon, so he is committed to "exterminating" these delicious creatures.

The meat of these sea crabs is indeed extremely full, and even with the taste of sea dragons, which is no longer the same as that of humans, they can still taste delicious. The crab's thick armor may be useful against large octopuses, but against the sea dragon's tungsten carbide minions, it's just as good as papier-mâché. The sea dragon chose these crabs and octopuses as food, and the local fish and whales finally escaped.

Starting with the appearance of these large crabs, marine life has grown in large numbers in the world's seas, and some exotic algae have grown in large numbers in the estuary, which can greatly absorb the chemical toxins and sediment that have washed into the ocean, fix the pollutants and precipitate them and then decompose them into harmless substances. This is a boon to the world, but it is also the beginning of an unfriendly distant-water fishing industry.

Not only the sea devils, but also the large octopus, squid and squid and their prey, and the large sea crabs are dangerous creatures to the fishermen, and if the net of catching fish is dragged to the sea crab, then the net is finished—not to mention the heavy weight of the sea crab, their pincers alone can easily tear the net. Even if they are caught, the ferocious crabs can easily cut the board with a pair of pliers that resemble hydraulic scissors, and if a person is accidentally caught, it will basically kill or injure them. The crab was distributed almost immediately to the world's seas, and it is not known how they spread. There are still ordinary pike crabs and so on, but they are all bigger, and the diners are very happy, but the fishermen are miserable and happy......

The same is true for fish breeding, and the sea that had been empty is once again full of fish. And those bizarre seaweeds can actually swim upstream, into freshwater estuaries, and the more polluted they are, the more crazy the growth of these seaweeds becomes. The polluted rivers have become impassable under the wild growth of seaweed, which is tangled in the propellers and is a headache for shipping companies. The cost of cleaning up has risen again and again, and these things are more capable of growing than water hyacinths, and in the polluted Yangtze River, the seaweeds grow at a rate that is almost visible to the naked eye — growing five or six meters in a day and a night.

Is this a good thing or a bad thing? People really can't tell -- environmental protection projects that may have cost tens of billions of dollars don't need to be spent at the moment, and nature will naturally help you solve them, but the cost of cleaning up the waterway has risen again and again, and at the same time, the navigation capacity has turned over and down, and this is really a problem. It's not just the continent that has such a problem, but even North America. The Great Lakes region is overrun by seaweed upstream from the Atlantic Ocean, and the heavily polluted lakes are overgrown with long, expansive seaweeds, destroying shipping capacity while the quality of the lake's water is rising to the level of clear water it was before the Industrial Revolution.

The Florida swamps were also invaded by these seaweeds, which grew wildly and absorbed a lot of chemical pollution, but before that, the peculiar crocodiles were able to hunt. The little creature grows unusually fast, and after only three months of hatching, he is already able to hunt careless waterfowl. The body length also reaches the level of one meter eight, which completely violates the growth rate of any kind of crocodile......

Compared with the growth rate of crocodiles, the speed of the mainland's reclamation of islands in the South China Sea, these outstanding craftsmen in just a few months, the reefs and reefs that are well controlled in their own hands have been filled into islands, and the seaplanes taking off on the islands have really discovered several Sea Demon Chapter attacks. The waters of the South China Sea were so clear that planes hovering in the air could see the Sea Demon at depths of several meters or even more than ten meters with a fairly clear view - at least the monster had to float to this position when attacking fishing boats. They managed to chase the monster away with depth charges a few times, but unfortunately they couldn't kill the monster......