There is not only common sense in reality, but also a lot of intriguing anti-common sense knowledge.

11. Penguin actually has a pair of long legs, and it also has knees. The short-legged penguin that walks unsteadily has long legs three times longer than you think!

(Penguin is a little fat, because it is too heavy, so it almost hides its thighs and calves in its skin and muscles)

12. Desert Eagle pistol is generally only used for collection

Because it is too big and heavy, it is said to weigh two kilograms and has great recoil.

13. Black toothpaste is from China, while Chinese toothpaste is from abroad

Chinese toothpaste: Unilever Group of Europe (Netherlands and Britain)

Black toothpaste: Hongkong, China, Zhongshan, Guangdong.

14. Human body is born with body odor, and people without body odor are abnormal.

There are two types of sweat glands in human body (apocrine glands and apocrine glands)

Apocrine glands are mainly under the armpits and legs, and the sweat discharged from apocrine glands provides growth conditions for bacteria, and the sweat is decomposed by bacteria to produce fatty acids, thus giving rise to a bad smell.

Thousands of years ago, it was found in the ancestors of human beings. However, with the passage of time, the situation changed gradually. When human ancestors left tropical Africa and entered subtropical Asia, a gene that "controlled" the secretion of apocrine glands was mutated, which reduced the secretion of apocrine glands, made the growth conditions of bacteria that produced odor worse, and the odor disappeared. That is to say, all the people without body odor were mutants. Moreover, this gene mutation mainly occurs in East Asia, in which China accounts for 95%, so now, the vast majority of China people do not have body odor, but Caucasians are far away from East Asia, and 9% of Caucasians have body odor, while blacks are more serious.

15. The "hemp" of "Mapo Tofu" refers not to the spicy "hemp" but to the "pockmarked" rot on the face. It was first created in Chengdu in the Qing Dynasty.

There is a small shop called "Chen Xingsheng Restaurant", and the tofu made by the female boss is particularly delicious. Because her face is pockmarked, she is called "Chen Mapo"

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17. The meteor you see may be astronaut's excrement

Astronauts on the International Space Station will produce 82kg of excrement in one year, some of which will be recycled on the International Space Station, and more will be discharged into the atmosphere to be burned, which looks like a meteor.

18. Strawberries are not only red. Any kind of strawberry may have white fruit-colored individuals.