The wrasse has a very magical sex-changing magic.
During the non-breeding season, all wrasses in the entire sea area are female.
During the breeding season, countless wrasses will gather together. The oldest female wrasse will transform into a male wrasse, responsible for protecting female fish and breeding habitats. The second oldest female wrasse will become the ruler of the entire group.
If the male wrasse in a school of wrasse dies, the oldest female wrasse that dominates the school will become a male and take over the position of the deceased male.
Amazingly, the wrasse's sex change only takes a few hours, and the eggs can be fertilized in just two to three weeks.
And the sex change of the wrasse is not irreversible.
Female fish can turn into males, and male fish can turn back into females.
For example, when two groups of wrasses meet, if one male fish cannot beat the other male fish, it will turn into a female and let the leader of the other group lead the two groups.
Fang Youqun's mouth opened wide after hearing this. "This fish is too amazing, isn't it?"
Chen Qingsheng sneered, "Magic? That's what you call magic? There's more magic to come."
"Ah? There's more?" Fang Youqun asked in surprise.
Xiang Yang smiled and nodded, "Look at what kind of fish we caught with this net."
"Bass, pike, knife fish, hairtail... and a two-faced turtle. The fish caught in this net are too diverse. The catch is not much, but the number of fish species is ridiculous." Fang Youqun replied.
Xiang Yang smiled, "Take the barracuda and cutlassfish for example. These two kinds of fish are very ferocious and belong to the ranks of marine predators. They are also natural enemies of each other. Normally, it is impossible for these two kinds of fish to appear in the same sea at the same time, because as soon as they appear, they will fight until the other is eaten. With this net, we not only caught these two kinds of fish at the same time, but also many other kinds of fish. Don’t you think it’s amazing?"
Fang Youqun nodded, then shook his head. "Maybe these fish just happened to pass by this sea area. Although it is a bit magical, what does this have to do with whether the wrasse is magical or not?"
"It's a big deal." Xiang Yang shook his head and said with a smile: "Strictly speaking, the wrasse is an invincible fish."
"Ha, invincible?" Fang Youqun almost laughed out loud. "Brother Yang, this is too outrageous, isn't it? If you say that killer whales or humpback whales are invincible fish, then it makes sense, but wrasse is invincible? With its small body, how can it be invincible?"
"When I say invincible, I don't mean the same as what you think." Xiang Yang said with a smile: "When I say the wrasse is invincible, I don't mean that the wrasse is very powerful, but that the wrasse has no enemies."
"No enemies?" Fang Youqun shook his head like a drum. "That's even more impossible. This isn't a poisonous fish. How could there be no enemies?"
"There is a saying that goes 'the benevolent are invincible', and I think this saying is just right for wrasses. Wrasses are very enthusiastic about the noble cause of 'saving the dying and healing the wounded'. For generations, they have opened 'free hospitals' in the ocean, doing extensive 'good deeds', treating all fish equally and responding to their requests. Over time, there are not many marine creatures in the entire ocean that will attack wrasses."
Fang Youqun opened his mouth wide, feeling like he was listening to a fairy tale.
In fact, what Xiang Yang said was true.
In 1971, a Dutch biologist discovered while observing fish that many marine fish often gathered around wrasses.
These sea fish include all kinds of fish, including docile vegetarians, weak ones that can only prey on scallops or conchs, ferocious marine predators, and even terrifying creatures like sharks.
However, when those marine fish encountered the wrasse, they gathered in a circle and did not interfere with each other, just like the lions and zebras in a certain video drinking water calmly together at a water source on the prairie. It was indescribably weird and peaceful.
Later, biologists discovered through observation that most of the marine fish surrounding the wrasse were "sick fish".
When people are sick, they need to ask a doctor for diagnosis and treatment.
When cats and dogs are sick, they will go looking for herbs themselves.
If a fish gets sick, does it just have to wait to die
The answer is no.
Through observation, biologists and scientists have discovered that fish actually have their own doctors.
Among them, the wrasse is one of the fish doctors.
Especially the double-banded wrasse species, they seem to have inherited memory, born with knowledge, and are born with extremely superb medical skills, which is simply a miracle cure. Many sea fish that seem to be dying and beyond help can become alive and kicking again in a few minutes as soon as they come into contact with the double-banded wrasse.
Scientists conducted a series of experiments in which they placed a group of fish with infected tissues and parasites into a tank containing wrasse.
The group of sick fish looked sick and listless at first.
However, when they saw the wrasse, their eyes immediately lit up as if they were experiencing a last burst of light, and they immediately swam to the wrasse and waited for treatment.
The methods used by the wrasse made the researchers who conducted this experiment exclaim in disbelief.
The wrasse removes the infected tissue from the sick fish.
The wrasse eats the parasites on the sick fish directly as snacks.
What’s even more amazing is that a carnivorous fish with infected tissue in its mouth opened its mouth immediately after seeing the wrasse. The wrasse was not afraid of being eaten at all and swam directly into the mouth of the carnivorous fish to heal it.
The carnivorous fish did not really eat the wrasse. On the contrary, it was very caring towards the "doctor" who treated it. It stayed very quietly at the bottom of the water, showing its injured parts to the wrasse "doctor" without reservation, and even allowed the wrasse to move in and out of its most fragile gills.
A diver once took a set of very interesting videos underwater.
A group of marine fish of different species and sizes lined up quietly on the seabed waiting for treatment from the wrasse.
At this time, a ferocious bull shark came over to cause trouble.
The diver felt regretful, thinking that the fish would panic and flee, and the video recording would definitely come to an end.
The development of the incident was far beyond the photographer's expectations.
None of the fish, including the wrasse, escaped at all.
Fish of different species, groups and sizes surrounded the wrasse together. The smaller fish worked together to protect the wrasse, while the stronger fish worked together to drive away the ferocious bull shark. Then the fish organized themselves, lined up again, and waited quietly for the wrasse to treat them.