19 little-known but actually real facts about the world.

Bear

Even cubs born in the same litter may have different fathers.

2. The worm-like fleshy protrusions on the alligator snapping turtle's tongue are used to lure prey.

Thirdly, some experts have stated that obsessive-compulsive disorder and romantic love share almost identical characteristics, as both have relatively high levels of cortisol and relatively low levels of serotonin.

cat

4. Cats have 230 bones in their bodies.

5. Carolina Reaper Pepper: One bite can send someone to the hospital.

6. Nearly 100 people die each year worldwide from suffocation caused by ballpoint pens.

7. Can openers appeared almost 50 years after canned food. In those 50 years, people used all sorts of methods and tools to open cans.

dream

8. Whether a person dreams or not is closely related to the ambient temperature during sleep.

9. Termite eggs are rich in calories and can be eaten raw.

10. Snow peas are not a species native to the Netherlands. They were brought to the country by the Dutch from their place of origin. Interestingly, snow peas are called "Chinese peas" in the Netherlands.

apple

11. Fresh apples will not sink to the bottom of the water.

12. Studies have shown that intelligent people have more copper and zinc in their hair.

13. When dining at a Danish restaurant, you only pay the bill if you are full from the food you order.

Fourteen. The index finger is called the index finger because people in ancient times used this finger to test the taste and temperature of food.

bathroom

15. 55.2% of people would allow others to enter while they are using the toilet.

Sixteen. The smell of cumin is similar to that of body odor because they both contain a substance called skatole.

17. It is often said that female drivers are "road killers," but in reality, the accident rate of male drivers is 8 times that of female drivers.

Alaska

18. 12,000 years ago, elephants, lions and camels roamed Alaska.

19. Women's nerve fibers are about twice as sensitive as men's, meaning that women's ability to feel pain is about twice that of men.