【Huang's Ancient Architecture Encyclopedia】No. 32370: Denatured sheephead serenity inhabits the sea.
The ugliest fish in the world, female and male, switch freely!
Subversive cognition: People think gender is fixed, but there are many fish that can switch genders!
Female fish into male fish? If people want to change sex, they must use surgery, such as male to female, surgical removal of offspring sticks, but fish degeneration is much easier.
The ugliest fish in history, the Asian sheephead serendi, is also hermaphrodite and can switch genders at will. Seyu is famous for its strange protrusions on its head, which bulge up a large bag on the top of its head, and when you look at it, it really resembles Shrek.
When the female Asian sheephead seine is large enough, the enzymes in its body will act and begin to release male hormones gradually. Over time, when the head of this female Asian sheephead serendi began to grow larger and the chin became longer, it completed the transformation from female to male. The Asian sheephead is known for its strange head prominence. The top of the head and jaw bulged, like two sarcomas huddled together, and a few teeth were scattered in the mouth full of tears, because of its swollen chin, bulging mouth, and a mouth of jagged teeth, it was naturally crowned "the ugliest fish in the world".
Seko is sequential hermaphrodite, and females are preferred, starting with females, and then some of the muscular females will turn into males, so the number of males is relatively small. The male color is white, while the female is blue. If the male begins to lose control of the group, the older, stronger female will transform into a male to complete mating.
Commonly known as the bluehead fish, the male and female usually remain intact, foraging for food together and occasionally mating. However, if the predator happens to catch the male fish in the lead, the dominant female in the school will become a male.
"The sex shift of this species is very significant because it is very fast." It takes only a few minutes to a few hours for the female to behave like the male to become more territorially aware and aggressive. After a few days, "she" will make a big offering to the other females. After 8 to 10 days, "she" becomes "him" completely.
The "removal" of males may put pressure on females. The hormones released by this pressure inhibit the activity of genes that produce estrogen, and eventually the ovarian cells begin to die. At the same time, these hormones increase the activity of androgen-producing genes, after which sperm nests form.
Red snapper is polygamous, once the male dies, one of the concubines is the largest, and a particularly robust female will immediately change sex and develop into a male, replacing the dead male. When the female learned that her "husband" did not exist, the female's nervous system immediately mutated, and her fins quickly enlarged and disappeared, replaced by a growing sperm nest, so that a large and robust male snapper became.
In addition to the characteristics of red snapper denaturation, there are other cod, herring, flounder, etc. in the ocean, and there are two kinds of reproductive glands in the same fish, namely "hermaphrodites", which excrete sperm and eggs by themselves, perform autoseconsion, and reproduce offspring.
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