15 interesting facts you may not know yet

Hummingbirds are the only birds that can fly back, bees can count to 4 or some people have the ability to smell and see music.

1. Hummingbirds (hummingbirds) are the only birds capable of flying backwards.

2. Some people can see, smell, feel in touch with musical melodies.

These are people who suffer from a rare disease, called "sensory cage" or "dual sensory" (synesthesia).One in every 2,000 people has this weird disease!

For example, a 27-year-old Swiss musician, called ES by the scientific community, can also see colors and feel the taste on the tip of the tongue when hearing sound tunes.She could see the red color on the note, the purple color on the Fa note, and at the same time also see the bitterness if she heard the second part, the second half left a slightly bitter taste.The three things are salty while the third year is sweet.Depending on the different pitch of the note, a piece for ES can be sweet, bitter, salty, sour or fatty.

3. People are not the only creature with fingerprints.Koala bears also have very similar fingerprints.Surprisingly, fingerprints of Koala bears the most humanity, not gibbons or chimpanzees.Even without analysis under a microscope, just seeing with the naked eye can see that strange resemblance.

4. Flamingos can live up to 80 years

5. Infants without kneecap.Patella is only present when children are 2 to 6 years old.

6. Humans are the only living creatures that can draw straight lines.

7. The flag of Alaska was designed by a 13-year-old boy.

8. According to a team of University of Queenlands researchers, Australian bees can count to 4.

9. Venus is the only planet in the solar system that rotates counterclockwise.Venus spins from East to West, while all other planets rotate in the opposite direction (from West to East).In other words, in Venus, the Sun rises in the West and sets in the East.

10. Not all dogs bark.Basenji does not bark, they just growl, moan, depending on the mood.

11. Women's hearts beat faster than men's hearts

12. Only the two animals that can see their tail without turning around are the parrot and the rabbit.

13. The only part of the human body without blood is the cornea because it takes oxygen directly from the air.

14. The melodious ocean wave of a snail when pressed close to the ear is not brought back from the ocean but the flow of veins in your ear.

15. When you blush, your stomach turns red