Frogs are one of the incredible amphibians that live on our planet. They, despite their own nondescript appearance, are cute and attractive in their own way. In addition, it is not for nothing that frogs are used as the main character in Russian fairy tales, and some nationalities even worship this amphibian.
The meat of certain types of frogs in many countries of the world is a favorite delicacy, and everyone knows about eating frog legs in France. In eastern countries, especially in Japan, Vietnam and China, restaurants have even been opened where they feed these green inhabitants.
Since the advent of the Old Testament, it was known about the rain from frogs, and in the entire history of mankind, a huge number of such testimonies have been recorded. It looks really bewitching, but at the same time frightening. So, for example, in 1912 such a rain fell in America. Then about 1000 amphibians covered the earth with a layer of 7 cm. In 1957 and 1968, similar frog rains fell in England. Scientists have not yet been able to explain this fact.
1. The eyes of frogs have a special structure. Thanks to this, they see upward, forward and sideways. In this case, frogs can see simultaneously in 3 planes. The peculiarity of such a vision of frogs is that they almost do not close their eyes. This also happens during sleep.
2. Frogs have a third eyelid. This amphibian needs a third eyelid to keep the eyes moist and to protect them from dust and dirt. The third eyelid of frogs is transparent and is considered a kind of glasses.
3. Frogs manage to catch all vibrations in the air, but the most interesting thing is that they hear in the water thanks to the inner ear, and on the ground with their skin and bones due to the audio vibration of the air mass.
4. Being on the earth, like many other animals, frogs breathe with their lungs. In water, they "inhale" oxygen with their whole body.
5. From birth and growing up, frogs have a tail, but when they become an adult, they shed it.
6. The record holder for the size of his own body among frogs - Goliath. Its dimensions are really impressive, because its body is 32 cm long and weighs more than 3 kg. Due to its massive hind legs, this type of frog jumps at a distance of 3 meters.
7. On average, a frog can live from 6 to 8 years, but there have been cases when the life expectancy of such specimens reached 32-40 years.
8. The structure of frog feet differs depending on the habitat of such an amphibian. For example, aquatic species of frogs have webbed legs that allow them to swim perfectly in the water. In tree species of frogs, there are specific suckers on the fingers, which help them to easily move on the tree.
9. When a frog moves on land, only one atrium works, and the brain receives oxygen through the arterial blood. If such an amphibian moves into the water, then 2 cardiac departments begin to work at once.
10. Of the 5000 amphibians that biologists have described, 88% are frogs.
11. Not all frogs can "croak". The goliath frog is considered mute, and some other species even sing at all. Some frogs can not only sing, but also grumble, and ring, and groan.
12. The frog uses its eyes to push food into the esophagus. She does not have the ability to perform such actions with the help of her tongue, and therefore frogs use their eyes for this, straining some of their muscles. This is why frogs blink regularly when they eat.
13. Many frogs that live in the north, in severe frosts, fall into suspended animation. They begin to produce glucose, which does not freeze, and with the onset of spring, the amphibians, which seemed dead, begin to "resurrect".
14. The glands of the tree frog secrete hallucinogens that can cause impairment of memory, loss of consciousness and the manifestation of hallucinations.
15. Frogs, unlike other representatives of the class of amphibians, do not have a neck, but they know how to tilt their head.
16. Few people know, but frogs regularly shed their old skin. This happens daily. After the frog sheds its own skin, it eats it in order to restore the reserves of nutrients that are stored in the discarded "clothes".
17. There is a unique type of frog on the planet. Their offspring are much larger than the parents themselves. Adults of this type can grow up to 6 cm, and their tadpoles reach 25 cm in length, after which they decrease in size as they mature and "grow". This type of amphibian is called the “amazing frog”.
18. The African hairy frog is actually hairless. The male of this type grows strips of skin during the mating season. But the most amazing thing is that, being born without claws, they easily do them on themselves. To do this, such frogs simply break their fingers and, thanks to the fragments of the bones, pierce the skin. After that, they become armed.
19. There are tens of times more males of one of the Amazonian frogs than females, and therefore at the time of reproduction they fertilize not only live, but also dead females.
20. The subspecies of the grass frog, when in danger, buries itself into the ground almost 1 meter deep.
21. There is a myth that touching a frog or toad causes warts, but this is not at all the case. The skin of such amphibians has bactericidal properties.
22. Kokoi is considered the most poisonous frog in the world. She has a tremendous degree of poisonousness, which is worse than that of a cobra.
23. Not so long ago, a monument to frogs was erected in Japan. This was initiated by medical students. In the process of training, they had to kill more than 100,000 such amphibians. By installing the monument, they decided to honor the memory of the amphibians and expressed their gratitude to them.
24. In ancient times, when people did not have a refrigerator, the frog was sent to a jug of milk, so that it was not allowed to sour.
25. Frogs live both on land and in water. That is why they have a close relationship with the two elements. The American Indians believed that frogs controlled the rains, and their abundance in Europe was associated with a bountiful harvest.
26. After a frog has been released into the wild, it returns to its original habitat or where it was once caught.
27. In the United States of America, a frog competition has been held every year for a hundred years. They compete in long jump. This event is quite emotional. Spectators and owners of frogs are actively sick and in every way cheer up amphibians so that they can make a successful high jump.
28. The first work of fiction that has come down to us, where these amphibians appeared in the title, is Aristophanes' comedy "Frogs". It was first installed in 405 BC. e.
29. In Japan, the frog symbolizes good luck, and in China it is considered a symbol of wealth. That is why many people put a souvenir frog with a coin in its mouth at home or at work.
30. In ancient Egypt, frogs were mummified together with deceased members of the reigning family and priests, as they were considered a symbol of resurrection.
