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What purpose do wisdom teeth serve? Detailed answer

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What purpose do wisdom teeth serve?

In our time, it can be argued with good reason that the only purpose that wisdom teeth serve is to provide income to dentists who remove them.

In all other respects, these teeth are completely useless for a modern person. However, nature rarely supplies its creations with unnecessary organs, and wisdom teeth are no exception to this rule.

Primitive man ate a very solid food, in comparison with which dried meat differs little from mashed potatoes. Additional molars (molars), now known as wisdom teeth, made it much easier for our ancestors to chew such food.

Over the course of evolution, the human skull has changed, the protruding jaws have shifted back and become shorter, leaving no room for wisdom teeth (also known as third molars). The jaws of many modern people are simply unable to accommodate these four now completely redundant teeth.

Author: Kondrashov A.P.

 Random interesting fact from the Great Encyclopedia:

Why don't mosquitoes die in the rain?

The mass of a raindrop is many times greater than the mass of a mosquito. This factor, as well as hairs on the entire surface of the body, leads to very little momentum transfer from the drop to the mosquito, which gives the insects the ability to survive in the rain. Another important factor is that the collision takes place in the air and not on a fixed surface. When a drop hits a mosquito, two scenarios are possible: if the impact is not in the center, the insect rotates a little and flies further, otherwise the drop drags the mosquito along for a short while, but it quickly frees itself.

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"Our previous work suggested that the nervous system is more flexible than we previously thought. In these experiments, the rat brain was able to easily adapt to new, unfamiliar "sensors" located outside the body. Thus, rodents learned to use an infrared camera as a new sense organ, so we wondered if the brain could "connect" to sense organs in another body," said Miguel Nicolelis of Duke University in Durham, USA.

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