The big fish that caused the trouble has been taken away by the management of the White Chill Islands to see if the reason for its madness can be found out from the physiological level.

And before it was taken away, the ark had already sent it on its way, and the fish's head had been cracked, and it was no longer alive, so it was better to give it a good time than let it linger in pain for hours.

......

The context of this incident is clear, and now the main question is: this fish is not a carnivorous fish, usually feeds on seaweed and seagrass, has a docile personality, and has never found them to attack people before, but why did it take the initiative to attack peaches this time?

In fact, Fang Zhou already had a guess in his heart about the reason why the fish was crazy and attacked people: when the fish was crazy, it was the time when the mysterious black shadow appeared in the sea, so it was speculated that it was probably the mysterious black shadow was hunting at that time, which alarmed the fish, and it fled in a hurry, and crashed into the peach in a panic.

From this point of view, the fish may be somewhat innocent, but in the face of the unknown identity of the mysterious black shadow, it is destined to take the blame for the incident.

......

......

The next day, as soon as the observation period was over, Momoko jumped up from the hospital bed, and this little girl was also very heartfelt, and she forgot about yesterday's danger so quickly, and returned to a happy state.

This mentality is really enviable.

Because of yesterday's unexpected circumstances, the travel plan was forced to be postponed, and I was supposed to finish my tour of the White Chill Islands yesterday and left this morning.

This time, a buffer period of a few days has been reserved for this travel plan, and the plan is postponed by one day, which will not affect the final return to the team.

......

Today's destinations are not above sea level, but below sea level.

The Bitter Islands are not only beautiful in the wind and snow, but also romantic under the sea ice.

Fang Zhou and the others rented a small sightseeing submarine, boarded the boat at a pier, and began to head towards the bottom of the Bitter Islands.

When the sightseeing submarine dives a few hundred meters, the sightseeing submarine turns on the lights around it, and the beautiful scenery of the surrounding seabed comes into view.

Unlike the howling wind above the sea, the bottom of the ocean seems calm and peaceful, and on the sandy bottom of the ****** vibrant, there are anemones of different colors, which gently sway with the sea, like a spring breeze blowing flowers.

The many deep-sea corals are like sharp swords stuck upside down on the bottom of the sea, and among them, shrimp and crabs probe their brains and feed on the seaweed flowers in the corals with their pincers. Because there is no sunlight all year round, they are mostly transparent or white in color.

While they were eating lunch, huge octopuses swept over the corals, and the shrimps and crabs immediately retreated into the corals, fearing that they would become the lunch of the octopus.

This area, which is home to a large number of marine flora and fauna, is like a forest on land, and under this forest, there are treasures.

The seabed of the Bitter Islands was discovered to contain abundant oil resources at the beginning of its development, but these oil resources were never exploited.

Because in the current era, oil has been eliminated as an energy source, not only polluting the environment, but also its energy is much worse than the energy of the same period in this era.

The treasures of the past have become tasteless and discarded chicken ribs now.

......

The sightseeing submarine followed the ocean current, but soon they discovered an anomaly, and a large number of dead creatures appeared on the bottom of the sea, and the distribution of these dead creatures was continuous, and it seemed that something passed by to cause the death of these creatures.

They continued on and soon discovered the culprit: an icicle-like waterspout moving at the bottom of the sea, and in its path, anemones withered, corals broke, and a large number of fish, shrimp and crabs died.

So what is it exactly? It's so powerful!

The narrator on the sightseeing submarine answered the doubts in their hearts for them-

It is a natural phenomenon that occurs on the seabed of the Bitter Islands and is called: Death Icicle. Death icicle is a phenomenon in which seawater freezes after it has cooled to a certain extent. Icicles first form on the surface of the sea, and then they continue to absorb the low temperature from the surface of the sea and extend to the sea, and the surrounding sea creatures will freeze to death because of the low temperature brought by these icicles, hence the name death icicles.

......

Although the icicle of death is incredibly lethal, it does not move very fast, and after a period of time, it will naturally disappear.

Dropping the icicles of death and moving on, a dark body of water appeared in front of them, a special sight that only appeared on the top of an underwater volcano called a hydrothermal vent, an underwater structure that spewed out a black plume of smoke that blackened the surrounding water, forming the black water they saw.

......

Volcanoes represent danger, but they also represent life.

There is an abundance of geothermal heat in the vicinity of the submarine volcano, which makes it a unique submarine volcanic ecosystem.

At the edge of this ecosystem, there is a fish called the glass-headed butterflyfish, which is black all around, but the head is transparent, and the pair of butterfly wing-like fins on both sides of the body make them look a bit like a miniature submarine.

So it's also known as: submarine fish,

......

The submarine volcanic ecosystem also lives a kind of "kind" sponge, which looks like a pale yellow reticulated flower basket, with a long tubular shape, thin at both ends, slightly thick in the middle, and a wide cavity inside.

The reason why it is called "goodness" is related to the broodstock shrimp that parasitize its body. This type of kiss usually occurs in pairs of females and males, and the bones are white. When these shrimp are still very young, they burrow into the sponge through small holes in the sponge, where pairs of broodstock shrimp make their home, give birth to children, and get food from the sponge.

Sponges provide them with a safe and stable place to live, so that they do not have to roam around in dangerous waters, so that they can live longer, and exchange a lifetime of freedom for a life of stability

When the broodstock shrimp mature, they can no longer pass through the small holes of the sponge, so they live in the sponge for life, living and dying together.

However, after the eggs of the mother shrimp hatch, the baby shrimp will rush out of the sponge wall and swim into the water to start a new round of parasitic life.

......

And the well-deserved overlord of this generation is the hognose shark, the nose of the hognose shark is like its name, the two nostrils are so large that it looks like a pig's nose.

And the hognose shark also has a special ability, that is, like a chameleon, it can change the color of its body. Although the pignose shark is large, it does not swim fast, so when chasing animals that swim faster than itself, in order to get close to these animals, the pignose shark uses this stunt to mix the body and background color to achieve the effect of confusing the public.

.......

When they passed through the black smoke at the bottom of the sea, they also saw the crater in the sea, but at this time, there was a red light surging in the crater.

"It's... Volcanic eruptions?! ”