#为什么自然界的动物不要擦屁股, and humans want to #
First of all, for the person who asked this question, capitalized ?
In fact, animals in nature will also wipe their butts
For example, cats and dogs are used to licking their PY with their tongues, and then happily licking their owners to pass on happiness.
So sometimes you smell a little stinky from your pet's mouth, and don't doubt it, it's licking PY
Cows also use their tails to clean their butts, and chimpanzees also wipe their tender PGs with leaves.
So nature is still very wonderful.
Humans wipe their butts because they walk upright and don't have the habit of showing their butts.
The physiological structure of the person determines that the human ass will clamp the anus tightly in the middle. Because we wear pants all year round, it is also relatively humid near the anus, which is easy to breed bacteria.
Of course, if you have strange habits, such as pulling shit, you will turn your ass to the sky and bake it clean, just when I didn't say it. [The smart toilet is this principle, water flushing, and then drying, so that there is no need to wipe]
The second is because human food is more diverse, after all, everyone's food is a little more oil and salt, many are not easy to digest, and the form of excrement is also more diverse, such as hard: Soft: Dry, muddy: Animals don't have this trouble, after all, they don't cook for themselves.
The third is the health problem, the feces contain a lot of bacteria inside, if you do not wipe, do not go to the sun, then the dark and humid environment of the chrysanthemum will make the bacteria breed faster, what inflammation, hemorrhoids, will take the initiative to find the door. In case you have another wound on your ass, that...
Fourth, there is the problem of human etiquette, which I will not say more.
Of course you don't want to wipe your ass anymore. I recommend you to use this
So, how idle is this person who asked the question?