Chapter 54 54．How did the goldfish get hit by the frog?

Q ai month question In "Wars of the Sexes", I saw that goldfish are occasionally raped by frogs and drowned, but how can goldfish be drowned?In addition, what will happen to the goldfish after being raped by the frog?Is it a golden tadpole? A Entai month First, do goldfish drown?The strict definition of drowning in medicine is because liquid enters the lungs and causes suffocation and hypoxia. Goldfish do not have lungs, so they do not meet this definition.However, there is no doubt that goldfish can suffocate to death underwater. According to everyday language habits, this is already considered "drowning".In a sense, fish leaving the water can also be regarded as "drowning" to die in the air, but considering that frog hugging is usually carried out in water, we rule out this possibility.

Although fish are in the water, they still need oxygen, but the oxygen is dissolved in the water.The solubility of oxygen in water is very low, much lower than the oxygen content in air; the dissolution rate is slow, and the diffusion in water is not fast, so relatively stagnant water bodies (such as small ponds or aquariums) are prone to local deficiencies. Oxygen situation.Fish generally respond to this by swimming to where there is oxygen.When the hypoxia is severe, the only place with a little oxygen is close to the water surface (because it is close to the air, a small amount of oxygen in the air will dissolve in the water), so the fish will "float their heads".Even though they seem to be inhaling "air" at this time, what they are actually breathing is only the surface water with more oxygen, and they cannot directly use the oxygen in the air.At this time, if you do not take oxygen supplement measures, the fish will soon change from a floating head to a floating belly...

Therefore, if the entire water body is hypoxic, the fish will "drown" in the water, and one of the important causes of fish death is hypoxia; if the water body is partially hypoxic, and the fish cannot freely If you leave this place and swim elsewhere, you will also drown.The third possibility is that the gills of the fish are blocked and cannot allow the oxygen-carrying water to pass through. This is similar to the mouth and nose being covered, and it will also drown (perhaps it is more appropriate to say that it is suffocated). Second, the question of whether goldfish can be raped by frogs.The literature cited by Olivia Judson comes from a 1968 article in a rather obscure magazine, "The Fishman and Pond Manager". A hard copy was found, so there was no way to check its authenticity.However, we can imagine a possible scenario:

1.The male frog found a goldfish, and it rushed towards it desperately, but the slow-swimming goldfish couldn't resist at all. 2.After catching the goldfish, the male frog adopts a standard hugging posture, which is to press the goldfish under his body. 3.Or because the process consumes too much energy, or because the male frog stays in place for too long, the male frog consumes the oxygen in the surrounding water environment. The goldfish feels the lack of oxygen and tries to swim away, but it fails... In addition, the posture of the male frog may also hinder it. Movement of the gill cover of a goldfish.Frogs use two breathing channels, the skin and the lungs, so it is possible to keep their mouth and nose above the water surface when the oxygen in the water is consumed, and they can still breathe normally.

4.Goldfish unfortunately died due to lack of oxygen... I believe the author of that article witnessed a similar scene.However, it is still necessary to find the original literature to make a final conclusion. In the end, frogs and goldfish are too different to be fruitful... Reproductive isolation is common between different species, and occasionally closely related species may not be completely isolated, but frogs and goldfish have diverged for at least 400 million years, Not to mention Donglei and Xiaxue, I don't know how many times the sea has dried up and stones have rotted.So this story is destined to be tragic.