In the eyes of children, the integration is only a scene in the cartoon, but in the adult world, it mostly refers to the process of animal tailing, but after the end of the tail, the male and female individuals will also be separated, going their own way, and the moment the gun is drawn, it is already a strange road.
However, in addition to the pseudo-fusion of the tail, there is also a process of true fusion of two biological individuals in nature. Never be separated for a lifetime.
This true fusion is the highest state of you having me and me having you, and ultimately making two independent individuals a complete biological individual.
Isn't it amazing, in fact, this fusion process is just a strategy of mating and reproduction, but the natural world is not ambiguous at all in mating, and each species has evolved a variety of strange ways to breed offspring, which can be said to be all-consuming.
This male-female fusion creature is the fish of the order Trout, we generally call them sturgeon, if you have seen this creature, believe that your little heart has been captured by its ugly, terrifying appearance.
This creature is like a part that God picks up in the garbage heap, casually pieced together, perfect without beauty. Judging from their appearance, I believe you can also guess that this is a deep-sea fish.
Because at present, we basically find fish in the deep sea do not have a normal appearance, in fact, this is not surprising, after all, the deep sea environment is dark, good looks are useless, because everyone has two eyes and a black, who still cares about whose appearance.
And the creatures in the ocean are not like the creatures on land, which will lose the opportunity to mate because of their appearance. You see, the giraffe must have a long neck, and the markings on the body are also very important; the male lion must have a beautiful bib, and the body must be strong and well-proportioned.
Red deer and sika deer must have a pair of beautiful horns, which can not only be used for fighting, but also can win the hearts of their sisters. Birds are even more so in this regard, most of the male feathers are unusually bright and beautiful, peacocks are typical representatives, a good looking feathers can take their sister home.
And the creatures in the deep sea do not have the pressure of this sexual choice, so it is easy to grow a long time, too much decoration is cumbersome, and can not be eaten as a meal.
Although the sturgeon lives in the deep sea, this fish is not rare, the distribution is very widespread, the Indian Ocean, the Pacific Ocean and the Atlantic Ocean, and even the Arctic Ocean can find them, although they look fierce and evil, but they are nutritious, delicious meat. So their ending is the following picture:
That's right! Steamed trout. However, the depth of distribution of this fish in the sea varies, from 500 meters to 2500 meters deep sea, but most of the species live in the bottom of the deep sea can not be caught, so there is no economic value. All we could eat were the trout in the diving area.
The sturgeon looks fierce, but this fish is very bulky, does not like to move, is not good at hunting prey, likes to crawl in the mud and sand to hide itself, but this fish is a master of hunting.
I believe you have seen this fish head a long tentacle-like thing, the end of the expansion to form a glowing "bait", the overall look like a fishing rod, and the deep sea creatures have phototropism, so the sturgeon only need to crawl under the water, light their own small lanterns, wait for the prey to be hooked.
So we often say that the sturgeon is a fish that can fish, but sometimes it is not only the prey, but also the predators who are bigger than themselves, and the squid will quickly take the glowing "lantern" into the mouth, instantly dark, and then rely on strong fins to escape.
The picture above is some of the trout in the deep black, but we can see that only the females are there, so where are the males? This brings us to the sexual parasitism of male squid.
Male and female sturgeon look similar in size when they first hatch, but the length is different, the female grows rapidly, reaching 1 to 1.2 meters in adulthood, and the color of the skin will become darker and the eyes will become smaller.
But the male fish in addition to the eyes to grow, the other basically did not develop much, the body size is 8 to 16 cm, you feel how big the gap is, the female and male fish body shape, like a 1.2 meters tall child holding a pencil in his hand.
In the cold, dark, vast deep sea male fish began to look for female fish as soon as they were born, as long as they encountered the female fish, they would bite the female fish and stick to it for life, and they would live a long life of eating soft rice. Is it good to eat soft rice? Are you envious? Hope the king is restrained!
Males also have no way, and such parasitism will pay a heavy price! First of all, they are very small, it is difficult to feed themselves, the most important thing is that this fish is not a social creature, and the deep sea is vast, it is fortunate to meet female fish, they also have to consider their own inheritance.
So this parasitism is indeed a good choice, feeding yourself and injecting genetic material into the female at any time. The young male who bites the female, after a while, the mouth is gradually linked to the skin of the female, and finally completely heals, forming a complete circulation system with the female, and the nutrients needed in his body also come from the female.
Males, who were already short, also stop growing, and eventually all the organs except the male reproductive system will degenerate. This is equivalent to the male fish completely turning himself into a "tintin" and installing it on the female. Nature can really think of anything...
Do you think a child can only hold one pencil in his hand? Obviously not, one male fish can not meet the size of the female fish, and another one will still bite the body. In the picture above is a family that loves each other, the new male fish, the eyes have not yet had time to degenerate.
This acquired way of breeding for females by combining them is indeed novel! The purpose and life of the male is to become part of the female's body and fertilize the female through venous blood circulation!