1. Do you have a habit of drinking eight glasses of water a day? When drinking water from a mineral water bottle, the pursing of your lips can increase wrinkles around your mouth.

2. Fish get thirsty! Thirst is caused by an imbalance of electrolytes in the fish's body, resulting in a high concentration of solutes.

3. Healthy people fart about 15 times a day, more often while sleeping. There is no significant difference in the frequency of farting between age and gender. Only 1% of the gas in farts smells bad. In addition, sociological surveys have found that "men usually find farting interesting, while women find it disgusting."

4. When a dog is happy, it wags its tail to the right; when it is sad, it wags it to the left.

5. The baby koala smells like syrup.

6. Fish have a sense of smell that is 1200 times more sensitive than humans. The nostrils are the openings of olfactory receptors. Each nasal cavity has two openings: the front opening is called the inlet opening, and the back opening is called the outlet opening. When a fish swims, water flows in through the inlet opening and then out through the outlet opening. In this way, the fish can smell substances with odors in the water.

7. White chocolate is not considered chocolate because it does not contain cocoa solids or cocoa liquor. However, white chocolate does contain cocoa beans, primarily cocoa butter.

8. Loneliness and depression are more likely to accelerate aging than smoking.

9. Just like skin, human eyes can also be sunburned by strong sunlight.

10. Paper money is different from paper; it is not made from wood pulp but from cotton.

11. Milk that has been left out for a long time will become more viscous. The fat particles in milk are smaller than the overall density of the milk, so they will all rise to the surface if left out for a long time.

12. Why is there a mini pocket on jeans? The real purpose was for gold prospectors to carry pocket watches when jeans were first invented. Pocket watches were rare items back then, so they would carefully place them in the small pocket while prospecting for gold to prevent loss or scratches.

13. Cold water is heavier than hot water.

14. Horses can run within hours of birth.

15. Having a small drink before bed not only doesn't help you sleep, but it also makes you more likely to wake up in the middle of the night.

16. Under sufficient water conditions, bamboo shoots can grow to more than half a meter in a single day. Within three weeks of breaking through the soil, they can grow to a height of over ten meters, making them the "tallest plant" in the plant kingdom.

17. Straight roads make it easy for drivers to become distracted and prone to accidents. That's why long stretches of highway are not built to be perfectly straight.

18. The mallard is the only duck that truly practices monogamy in nature.

19. 111,111,111x111,111,111=12,345,678,987,654,321。

20. Polar bears have black skin. And when their fur is shaved, it really is black!

21. Honey, if stored properly at room temperature, will almost never spoil.

22. The popularity of perfume in France was due to the Black Death. At that time, the plague was rampant, and people dared not go to bathhouses for fear of infection, so the streets and alleys, as well as the people passing by, reeked of a foul stench!

23. The red liquid that flows out after a steak is cut is not blood, but myoglobin.

24. Mosquitoes are the deadliest creatures in the world. They easily spread germs by feeding on human blood, causing serious casualties in areas with limited medical resources.

25. The Principality of Sealand, the world's smallest country. A fortress located on the English Channel, with a population of only 22.

26. Holding your breath for 30 seconds after exhaling can cure hiccups.

27. The forearm is the same length as the sole of the foot!

28. Why does it hurt so much when your hand is cut by paper? The fingers have a large number of sensitive nerves. When the paper cuts down to the dermis, the nerves are continuously exposed to the outside world and are stimulated, resulting in a sharp pain.

29. A dog's sense of smell is 100,000 to 1 million times more sensitive than a human's. A dog can even smell a scent from a kilometer away, and even further depending on wind direction.

30. Just like humans, dogs' nose prints are unique. Imagine using a dog's nose as a fingerprint scanner for your iPhone or door key!

31. Tomatoes, eggplants, and other vegetables all contain nicotine. Although they all contain nicotine, the amount is negligible.

32. The smell of mowing the lawn is the grass crying for help! When plants are injured, they emit a unique scent that serves to stimulate the generation of new cells or to signal other plants to defend themselves by diverting nutrients elsewhere.

33. Your nose is usually only clear on one side. This isn't just when you have a cold; normally, only one nostril is more clear than the other. The two nostrils are constantly taking turns working, a phenomenon known as nasal circulation or nasal cycle.

34. Most people feel awkward when their own name is suddenly mentioned.

35. Arabic numerals were invented by Indians.

36. The least populated country in the world - the Republic of Molossia

37. How to prevent foam from overflowing if you accidentally shake a can of cola? Hold the cola in front of your throat and make a sound continuously for 30 seconds. The vibration in your throat will break the bubbles and prevent them from overflowing!

38. Dandelions are waterproof. If you put a dandelion in water, not a single drop of water will remain on it when you take it out.

39. Octopus blood is blue. Octopus blood contains a copper-containing hemocyanin.

40. A giraffe's tongue can reach its own ear. A giraffe's tongue can be as long as 50 centimeters, almost the length of an adult's arm. Some speculate that if it wanted to, it could definitely lick its own ear.

41. Squirrels recognize each other through their sense of smell. Squirrels always hide the food they find in one place, but they never rely on memory to find the food storage location; they rely on their sense of smell. They treat their own kind the same way. When they first meet another squirrel, they rely on their sense of smell to identify it, sniffing very closely, almost like kissing. The second time they encounter the same squirrel, they know who it is just by smelling its scent.

42. Goats have a near 360-degree field of vision. Most animals, including humans, have round pupils, but the pupils of animals such as goats, toads, and octopuses are horizontal. This expands their field of vision above the horizon, allowing them to better spot predators. Goats have a near 360-degree field of vision.

43. Koala fingerprints are almost identical to human fingerprints. Their fingerprints are so similar to human fingerprints that they are difficult to distinguish even with a high-resolution microscope. This animal is the koala.

44. The antlers of a deer are actually sentient; they can sense even a fly landing on them.

45. Digestive bacteria can rest in the appendix. The appendix is ​​very useful for these digestive bacteria. After a period of intense activity in the gut, they can rest in the appendix and sometimes even use it as a breeding ground, replenishing the intestines with new bacterial members.

46. ​​How many pixels does the human eye have? The human eye has approximately 500 million pixels!

47. No matter your age, you may have mites in your eyelashes. These mites, which live in eyelashes, are about one-third of a millimeter long and are almost transparent, making them invisible to the naked eye.

48. The iron in the human body can be used to make a nail that is about 4 centimeters long.

49. When a person dies, the last thing they lose is their hearing. The transmission of smell and taste relies on enzyme cascade reactions. In this series of reactions, a constant temperature is required. When a person dies, their body temperature drops sharply, and such reactions do not proceed completely, thus the senses of taste and smell are lost.

50. Hearing is transmitted through hair cells in the cochlear fluid, which convert sound signals into electrical signals and then transmit them to the brain, so it eventually disappears.

51. "Sixth Sick Sheik's Sixth Sheep's Sick" is one of the most difficult sentences to pronounce in English.

52. Pearls will dissolve in vinegar.

53. You might be able to pull a cow up the stairs, but the cow doesn't know how to go down them.

54. Pigs cannot look up at the sky.

55. The duck's quacking had no echo, and no one knew why for the time being.

56. A snail can sleep for 3 years without eating.

57. The water we drink is 300 million years old.

58. Heating a stone in a microwave oven will cause it to explode.

59. Cats can produce more than 100 sounds, while dogs can only produce 10.

60. If Barbie doll were human, her measurements would be 39-23-33.

61. Starfish have 8 eyes, one on each leg.

62. A giraffe's tongue is 2 feet long; but it can't cough.

63. Elephants can stand upright on their heads.

64. Ants scratch themselves when they wake up in the morning.

65. Owls are the only birds that can distinguish blue.

66. A whale's heart beats only 9 times per minute.

67. Oysters can change sex from male to female, and this can happen several more times.

68. A 70-pound octopus can squeeze through a hole the size of a silver coin because they have no spine.

69. Newborn turkeys need their parents to teach them how to eat, otherwise they will starve to death.

70. A shark can detect blood in water as little as one part per million.

71. Bats are the only mammals that can fly.

72. Cats that eat dog food for a long time may lack taurine, which could lead to blindness.

73. A caterpillar has more than two thousand muscles.

74. A shrimp's heart is in its head.

75. The most resilient and powerful muscle in the human body is actually the tongue.

76. It's impossible to sneeze with your eyes open.

77. Crocodiles cannot stick out their tongues.

78. Polar bears are all left-handed.

79. Ostriches have eyes that are bigger than their heads; and starfish have not yet evolved a brain.

80. A flea can jump a distance 350 times its own body length, which is equivalent to a person jumping across an American football field.

81. A cockroach with its head removed can survive for 9 days, after which it dies from excessive hunger.

82. No piece of paper can be folded more than 7 times.

83. Sleeping burns more calories than sitting and watching TV.

84. The first item with a barcode was chewing gum.

85. The human nose and ears grow continuously throughout life.

86. Americans are the most frequent users of toothpicks.

87. A normal person's eye muscles move an average of 10,000 to 15,000 times a day.

88. Many people drink a cup of coffee every morning to stay awake, but actually an apple is more effective than a cup of coffee.

89. Most of the dust in your home is your dead skin.

90. The pressure generated by a person's heart can eject blood 30 feet high.

91. You can never lick your elbow with your tongue.

92. The world's hottest chili pepper, the Carolina Reaper, is so hot it can send someone to the hospital.

93. The Turritopsis dohrnii jellyfish is the only "phoenix" on Earth.

94. Ice worms that can travel through solid ice live in glacial regions.

95. Dogs can use their sense of smell to detect whether a person is stressed.

96. Smoking ages your biological age by 1.25 years, while insomnia increases your biological age by 0.44 years.

97. Most pesticides will be broken down by enzymes in the plant within a certain number of days after spraying. After buying fruits and vegetables, let them sit for a few days to allow the residual toxins to decompose. Refrigerating them will inhibit the activity of enzymes in the fruits and vegetables!

98. Octopuses may become stressed due to food shortages or environmental factors and start eating their own tentacles, eventually weakening and dying.

99. Why do we rarely eat blue fruits? There are very few blue fruits in nature.

100. One last little-known fact: What are you doing right now?