In nature, there is a kind of annoying "Lao Wang next door". It completes mating secretly , and then asks others to take care of its offspring.
The child left behind by "Lao Wang next door"
The spotted toadfish in nature
This species is the spotted toadfish. The spotted toadfish is shaped like a catfish . Like the spotted toadfish, it likes to live in the soil. Among them, this seems to make the image of "Lao Wang next door" more abstract.
Most of them live in the coastal areas of the Eastern Pacific Ocean. The water depth they live in is about
Spotted Toadfish's body is also covered with luminous bodies. When they are on the seabed, Spotted Toadfish rely on these luminous bodies to attract prey and hunt for food.
It can attract prey by using luminous bodies.
Spotted toadfish are carnivores. Due to their size limitations, most of their food is small fish and shrimps , and they also eat some scallop meat. When
hunts, the spotted toadfish usually lurks in a certain location, allowing the prey to actively approach it through the light, giving it a sense of waiting.
is most famous for its behavior as the "Lao Wang next door".
Some male spotted toadfish are very small, and some are even much smaller than females when they reach adulthood, and they look like a subspecies.
The small size of the spotted toadfish
makes it difficult for it to find a mating partner , but the mission of reproducing offspring in nature forces them to consider other methods to complete mating.
At this time, these small-sized spotted toadfish began to engage in the activities of the "Lao Wang next door" .
The busy "Lao Wang next door"
The reproduction of spotted toadfish is mostly male-dominated. Every year in late spring and early summer, male spotted toadfish will swim to coastal areas and choose a suitable place to build a nest.
Male-led reproduction
Most of them will choose to be in rock crevices, which is effortless and very safe . When the nest is ready and everything is ready, you can start calling females for mating.
The way they call females is very special . They rely on the dull calls emitted from their bodies to attract females from a distance.
This kind of cry sounds to some people like the sound of a motorcycle or an engine , and to some people it sounds pleasant, like the beach "singing" .
Perhaps, among the spotted toadfish, there are also cases of tone deafness and , resulting in various and different sounds.
It sounds like a motorcycle.
After receiving the signal, the female first judges whether the male is worthy of mating based on the sound of . If the sound passes the test, the next step is to check whether the cave it built is qualified.
finally checks whether its genes can produce healthy next generation. This method of testing genes is generally judged by looking at the size of the male spotted toadfish.
So even if the small spotted toadfish can pass the first two levels, the last level will not be recognized by the female spotted toadfish. After all, which female doesn’t want to give birth to a strong male spotted toadfish? What about the next generation?
Females are very picky when reproducing.
The mating method of spotted toadfish is in vitro fertilization. , the egg cells excreted by the female are combined with the sperm excreted by the male to give birth to a new life.
Between the sperm and egg cells excluded, there is a layer of membrane composed of protein and other nutrients to protect the combination of sperm and egg while providing nutrients for the fertilized egg to promote the birth of new life.
After all the conditions are met, the female spotted toadfish will lay her eggs in the male's hole, and then fly away.
Toadfish that attracts females
In order to ensure that their sperm can fully combine with egg cells, the male toadfish will welcome about 3 to 4 female spotted toadfish in his nest. When all After the egg cells are gathered together, the male spotted toadfish will slowly discharge his sperm. During the
period, small spotted toadfish were given a chance. They would disguise themselves as female spotted toadfish. . Due to the small difference in size and appearance, large male spotted toadfish mistakenly thought they were female spotted toadfish. Let them ovulate.
The small spotted toadfish disguises itself as a female
The small spotted toadfish secretly discharges its own sperm. The difference between sperm and egg cells does not look big, and the large male spotted toadfish cannot detect anything strange .
So the small male spotted toadfish completed the process of sperm and egg cells naturally . It can be said that he performed the behavior of "the old king next door" in front of other people's husbands.
Afterwards, the small spotted toadfish swaggered out , and maybe a large male spotted toadfish would give him a farewell before leaving. If there was another "red carpet", it would be really dramatic.
Lao Wang next door successfully left his offspring and left
After the sperm and egg union is fully completed, the large male spotted toadfish will still be in the nest, waiting for the of the child to hatch to protect the safety of his "own child" and bring the "good guy" to the nest. role to the end.
Some time after hatching, the large male spotted toadfish will leave, allowing its pups to grow up independently.
did not know that among his "descendants", actually had a group of "other people's babies" , and they would reproduce in the same way, maintaining one species and three categories.
Male spotted toadfish waiting to hatch
So, what is the reason that leads to this situation?
The mission of animals to reproduce
According to research by biologists, it is speculated that the reason is likely to be that during the evolution of to of the spotted toadfish, most of the spotted toadfish evolved a new form of . This part of the small The spotted toadfish was originally a species eliminated by nature.
But by chance, the small spotted toadfish found its own unique way of reproduction , which has been preserved for a long time. This reproduction method is also engraved in their gene .
Find a new way out in the evolution
It can be seen that the sense of mission to reproduce is really very powerful. In order to continue, the small spotted toadfish has to adopt this embarrassing way of survival.
It’s no coincidence that animals in nature will continue to fight for the reproduction of species and ? It's hard for people to believe.
For example, during mating or after mating, the female mantis will eat the male mantis clean to ensure its own protein needs, so that its offspring can be born smoothly.
The baby mantis , which was born under high nutrition, has more advantages in nature than other similar ones.
The female mantis will eat the male.
Quoll is also quite famous for its crazy mating method.
The quoll goes into estrus in the winter, and then searches around for the female around . Once it finds a female that is also in estrus, drags it directly into the cave regardless of whether it wants it or not.
Since the number of sperm produced by quolls each time is very small, in order to fully integrate their sperm and egg cells, the mating duration of quolls can usually reach about one day.
quoll
And in the process, the movements of quoll are bad and rude . This is to stimulate the female quoll to expel more egg cells. Of course, this is not a good thing for the female quoll. The female quoll Weasels often bite male quolls to express their dissatisfaction.
After mating, there will be a large death party among all male quolls. After mating, they lose energy and need a lot of food to replenish energy, but in the cold winter, food is the most scarce.
Rude Quolls
In order not to compete with females for food, male quolls usually choose to die collectively . For the greatness of the continuation of the species, the quolls instantly stood out.
Compared with quolls and most species, the anglerfish in the deep sea is more popular. The male anglerfish is much smaller than the female.
In the deep sea, once a male anglerfish finds a female, he will parasitize her . Over time, the two are connected by blood. Through the nutrients absorbed by the female, the male anglerfish will also get nutrients .
Ambitious anglerfish will parasitize on the female body
When reproducing, the male anglerfish transports sperm through the connected blood, completely combining the sperm and egg cells.
Throughout the whole process, the male anglerfish does not even need to eat by himself, making it the "King of Soft Rice" in nature.
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