The wonderful cold knowledge that really exists in world will introduce you to various scientific knowledge.

01. The beard is fastest growing hair on human body.

02. Coyotes often eat feces of other animals.

03. Wearing yellow will make you appear bigger in front of camera.

04. The average body fat percentage of pigs is around 15%, and some pigs have a body fat percentage even lower than 10%, which is equivalent to standard of professional athletes.

05. The history of hook pulling can be traced back at least hundreds of years. At that time, pulling hook was a very serious matter. This meant that if one of parties did not keep promise, little finger would be cut off.

06. Some fruits, such as red blueberries, lychee, and durian, are prone to alcohol, and driving after meals can be considered drunk driving.

07. Statistics show that 59% of boys and 66% of girls say that their favor will decrease after first kiss.

08.After introduction of anti-inflammatory drugs, drinking water will become sweet.

09.The internal organs of dolphins are very similar to those of pigs, and they live in sea, which is why they are called dolphins.

10. It is very painful for a whale to defecate, buttocks should be wide open and cannot close for a long time after defecation.

11. According to a recent Harvard study, chocolate does indeed extend life.

12. The sensitivity of nerve fibers in women is about twice that of men, which means that women's ability to feel pain is about twice that of men.

13. Adding milk to cola will make cola clear.

14. Even if eyes of a chameleon are blind, they can change color depending on environment.

15. You can also see rainbows at night.

16. The red color on French royal tapestry comes from cow dung and cow blood.

17. Currently, many scientists believe that there is no evidence that human activity is causing global warming.

18. A man once mailed a 40,000-ton brick house in Utah, and it has since become illegal to mail entire building.

19. There is bread on both sides and beef in middle. If there is other meat in middle, it can only be considered as a sandwich.