But the bottom of the sea, though dark, is not devoid of life. There are quite a few deep-sea animals living here, and even some creatures that can often be seen in shallow waters can dive to this depth to feed, such as the huge humpback whale and the tuna he just came into contact with.

At the bottom of the sea here, most of the creatures Tian Xu encountered had never been seen, and the fish he could only know could only take fish. However, he has seen many shrimp and crab crustaceans, but he did not expect these species to live in such a deep ocean.

He caught some hairtail fish, brown crabs and deep-sea shrimp and put them in the Medicine King Bucket, but he didn't know if these deep-sea animals could live in the saltwater lake that was only a few tens of meters deep in the Medicine King Bucket. To his relief, all the shrimp, crabs, and shellfish survived, except for the hairtail fish, which could not immediately adapt to the low pressure in the shallow water and died quickly.

After continuing to dive for a while, he could no longer feel the surface of the sea, and he knew that his attempt to dive in was beyond the limits of his olfactory imaging in the water, which was a small basin on the bottom of the sea, about one or two square kilometers, with a very flat bottom. It was in the middle of the basin, a little closer to the inner seamount, that he found a large group of creatures on the bottom of the sea.

It was supposed to be a shellfish, with a range of sizes, the smallest being the size of a fist, and the largest being larger than a washbasin. This shellfish is shaped like a scallop, with two round shells connected by a long, rectilinear central axis. He was a little strange because scallops are shallow-sea creatures that feed on planktonic algae, which are rarely found in the deep sea, and there is no food for them here.

Tian Xu carefully observed these scallops and found that they were still a little different from ordinary shallow sea scallops. The edges of these scallops are not as smooth as those of ordinary shallow-sea scallops, but rather have a circle of tiny serrations, and the obturator muscles in their shells are more developed than their shallow-sea counterparts. Around this group of scallops, scattered are the remains of some crustaceans, as well as some huge bones. By all indications, these scallops are likely meat-eating.

Tian Xu didn't get close to these guys easily, he carefully observed the surroundings, and sent out that there was no other biological activity near this group of scallops, obviously this group of scallops completely occupied this seabed basin that was more suitable for survival.

However, there are still animals that do not believe in evil. Tian Xu noticed that several deep-sea sharks were swimming towards here from a distance. Tian Xu himself carefully hid his body when he dived down, his stealth technique borrowed from the stealth method of the Immortal of the Holy Realm, it should be relatively perfect, ordinary animals could not find his existence from ten meters away, he believed that these scallops and sharks should not have discovered him.

The sharks swimming in the distance were not aiming at him, but at the scallops. It is said that these scallops do not deliberately hide their shape, their usually half-open shells will continue to emit a putrid smell, this smell is quite attractive to animals in the deep sea, because in such deep water, there are no plant creatures at all, the creatures here are basically scavengers, like the scallops emitted by the smell of rotting corpses, the attraction of other deep-sea animals is fatal. It is the existence of this smell that makes Tian Xu maintain a strong guard against this kind of scallops, and they deliberately attract other animals to come, obviously not with good intentions. The animal remains around them also prove this from the side.

Spotting a shark coming, Tian Xu's curiosity reached its strongest, and he quietly hid behind a reef a hundred meters away from these scallops, quietly waiting for the show to begin.

The shark attracted by the smell of scallops is a shark that lives exclusively in the deep sea, and there is a big difference in appearance from common sharks. These sharks have mouths that grow at the very tip of their heads, and they have several rows of sharp teeth, but the teeth are not particularly long, and it is not known what they do with these teeth. These sharks are about three to four meters long, with slender bodies that swing like eels when swimming, but they are not slow at all, at least 40 knots.

The sharks pinpointed the location of the scallops from a long distance and pounced on the area where the scallops were, ready to feast. But just as they came to where the scallops were, the scallop encirclement attacked.

These stupid-looking scallops leap up from the bottom of the water, their two shells fanning rapidly under the strong adductor muscles, propelling their bodies to swim quickly in the water. They also briefly spew water from the inside of their body to help them orient themselves.

The scallops pounce on the shark in a harmless central direction, and as they approach the shark, they suddenly spew out a stream of water that causes their bodies to reverse instantly, and then bite the shark with the edge of the jagged shell. The scallops attacked very quickly, so to speak, lightning fast, and with the speed of the sharks, they were not able to escape in time. In the first wave of attacks, every shark was bitten by scallops.

These scallops bite the shark and do not let go, and each shark has seven or eight at most, and at least one or two, all of which are hung with scallops. The serrations on the edge of the shell penetrated into the shark's flesh and blood. Then, more scallops jumped up from the bottom of the water and rushed towards the shark with the smell of blood, and soon the shark was full. The bite of these scallops was not too serious, but as the shark struggled, the wound was sawed deeper and deeper, and it was not long before the scallops hanging from the shark's body fell off.

Tian Xu noticed that the scallops that fell off were not because they loosened the shell, but because they used the jagged edge of the shell to bite off a piece of the shark's flesh. At this time, the shark was already full of scallops, and the gaps left by the fallen scallops were quickly filled by new scallops. In less than five minutes, the large sharks had lost their shape and turned into scattered pieces of minced flesh, even the harder bones were not spared, and they were also cut into pieces by the hard, sharp jagged edges of the scallops.

The hunt is over, and the scallops begin to eat. Although the scallops "bite" the shark with the shell, they did not swallow the shark meat like that, but spit out the shark meat again, and then a mouthpart like a straw stretched out from the shell, and used the file-like teeth on the mouthpart to lick the shark meat, scrape the shark meat little by little, and then swallow it. The shark blood scattered in the water is also filtered out by the scallops, which is really not wasted at all.

When these scallops hunt, they bite indiscriminately, which is even more terrifying than piranhas, and the hunted animals are torn to pieces by them, which is like a thousand knives, and these guys are better than the wolves on land.

Scallops do not have eyes, nor do they have sensory organs such as ears and noses of higher animals, so it is not known how they sense the arrival of their prey and attack at the most opportune time. Just when they attacked the sharks, Tian Xu forgot to use the inverted color mode of olfactory imaging to detect what signal they were capturing, and now when he scans again, he finds that these scallops are constantly absorbing odor molecules in the water when they are eating, so their sense of smell should be relatively sensitive.

In addition, Tian Xu noticed that the scallops are also very sensitive to the vibration of the water generated by the movement of their companions around them, and the shock waves are constantly absorbed by them, so they should have a relatively strong ability to perceive vibrations, which may be their main sense to know that their prey has approached.

These scallops are very special, Tian Xu wants to catch a few and go back to study. He cautiously approached these scallop groups, as long as his spiritual realm covered these scallops, he could unknowingly catch some and put them into the Medicine King Dou.

He assessed the combat effectiveness of the scallops he had just seen, and felt that he should be able to resist the attack of these scallops, and there would be no danger, and he might not even be detected by the scallop group.

Just as he approached about twenty meters from the edge of the scallop colony, the scallops on the edge suddenly stopped eating, half-open their shells, and made a defensive gesture. No obvious signal was found from them, and the vigilance quickly spread to the entire scallop colony.

"No, these scallops must have other senses," Tian Xu became vigilant, "I must have overlooked something, otherwise they wouldn't have noticed me, and how do they communicate with each other?"

That's when his field came into play and he noticed that the scallops were sending a very faint signal. This kind of signal is not even felt by his olfactory imaging!

What kind of signal is this? Tian Xu suddenly paid twelve points of attention, this discovery is too important for his olfactory imaging, and it is a great opportunity to make up for the shortcomings of his olfactory imaging!

His field is open to the maximum, and he does his best to capture this signal. He found that the transmission range of this signal was quite small, and it began to decay immediately after it was sent, and even with the powerful detection ability of the field, after these signals were transmitted to a distance of several meters, they were no longer felt. These scallops do not respond to the signals sent by their companions two meters away, and it seems that their ability to sense such signals is not particularly strong.

"But how did they find me twenty meters away?" Tian Xu was even more curious now, "Could it be that I am also sending out this kind of signal, and the intensity is greater? Or is there a different signal?"