I'm really immortal

At present, the largest bird in the world is the African ostrich. They can weigh more than three hundred kilograms, which is similar to many fat houses.

The combat effectiveness of a fat house is generally equal to 0.5 geese, which means that two fat houses can beat a big goose. A 300-pound African ostrich can run at a speed of 70 kilometers per hour and can be trampled to death with one kick. It's a big goose, so if you encounter an African ostrich in a house with similar weight, you must not act rashly and be more careful!

Although the African ostrich is large, it is nothing in Liu Changan's experience, not to mention its feathers are very short, so the down feathers in Liu Changan's hands must have nothing to do with ostriches.

"Now the bird with the longest feathers in the world is the long-tailed chicken. Generally, its tail feathers can reach more than seven meters in length. Forty years ago, there was a long-tailed chicken with a tail feather that was 13 meters long. That is to say, if it stood On the fourth floor, its tail feathers can be dragged to the ground downstairs." Liu Changan said to himself, drawing on his extensive knowledge about birds.

"I thought it was a peacock." Li Hongfang said embarrassedly. It was probably not just him who thought so, but most people with little knowledge would think so.

Li Hongfang is not a bird researcher or lover, but she is a hobby and collector of Song Dynasty paintings. She told Liu Changan about this when Liu Changan sent her to pick up "Along the River During the Qingming Festival".

Li Hongfang has appreciated many Song paintings. Flowers and birds in Song paintings are the pinnacle. Li Hongfang has seen quite a lot of birds among them. However, the birds in Song paintings are basically small birds. The biggest ones are eagles and peacocks, so peacocks are born. The impression that the tail feathers are the longest is also normal.

Long-tailed chickens are an artificial breed that was developed only in the last two to three hundred years. Li Hongfang has never seen them in Song Dynasty paintings, so naturally he is not familiar with them. Even if he saw them in a zoo, he would not be impressed. Everyone usually goes to the zoo. Looking at the types of animals that have not been eaten before, everyone has eaten chicken. Even if the tail is long, it is not interesting.

"Could this be the feathers of a red long-tailed chicken?" Li Hongfang followed Liu Changan's words.

"No. The long-tailed chicken's tail feathers are long enough, but its body is not big. It has down feathers the size of a normal folding fan. When this bird spreads its wings, it is probably bigger than a heavy fighter jet. Just imagine a bird about the same size as a J20 Birds fell from the sky..."

"How big is the J20? I know it is the most powerful fourth-generation heavy fighter in the world." Li Hongfang nodded with some understanding. Such a big bird must have become extinct, and only the hair in front of him is left.

"Be careful of the engine warning." Liu Changan smiled, "It is more than twenty meters long and more than ten meters wide... The wingspan of this bird must be more than ten meters wide... That means it is larger than a heavy fighter jet."

"How could there be such a big bird? There probably was one in the dinosaur era." Li Hongfang thought for a moment and shook his head. "There probably wasn't one in the dinosaur era. The largest flying dinosaur couldn't have been that big. It was too big to fly... …Maybe be able to glide using the terrain.”

"It didn't exist in the age of dinosaurs, but it existed in the age of mythology." Liu Changan held the down feathers and shined a flashlight on the down feathers.

Feeling that the night vision glasses made the red light too dazzling, Li Hongfang took off his eyes and stared directly at the down feathers.

Li Hongfang can understand the Age of Dinosaurs, but what does the Age of Mythology mean?

Under the illumination of the flashlight, the down feathers were bright red and dazzling. The color seemed to be that of flowing blood. It exuded a faint crystal luster, with the texture of jade and the vitality of blood.

Li Hongfang had never seen such a thing.

Liu Changan stretched out his hand and pressed the surface of the down feathers. The thin down feathers undulated like seaweed in the water. The edges of the down feathers rolled up and gently wrapped around Liu Changan's fingers. They climbed up to the fingertips and then fell down. Come down, as if expressing intimate emotions.

"What does the Age of Mythology mean?" Li Hongfang also wanted to touch this feather, but she was a little scared. Ever since she experienced watching a part of her body decay and die, she still has psychological shadows. This mysterious and strange thing, with its tiny fluff, reminded Li Hongfang of what Shangguan Dandan had pulled out of her body.

That time Shangguan Dandan tied her arms with his arms and pulled out the hairs one by one from her flesh. There was a thin layer of blood film on the tips of Shangguan Dandan's hair, which was so smooth. The flexible feeling is like the down feathers in front of me (Chapter 428).

Now it seems that the first time she entered this tomb, she was probably marked by this downy feather... It can't be said that it was a plot. After all, what impact it had on her. Li Hongfang still doesn't know what the withered and depressed state of her body is. I don’t know if Rasputin’s methods have anything to do with this feather.

"There was an era of giant beasts that could swallow clouds, spit out mist, and move mountains and seas." Liu Chang'an sighed, "Blue whales that were tens of meters long and weighed two to three hundred tons were very common in that era. Three species like the Argentinian dinosaurs Forty meters long and about a hundred tons of herbivorous animals, if they had appeared in that era, they would have been raised like lambs and used as a source of food."

"Is there still such an era? Then... how many years ago was that?" Li Hongfang was horrified after imagining it. If an ordinary person heard it, they would just think that Liu Changan was telling a fairy tale, but after all, Li Hongfang had Some special experiences, knowing that the world has many mysteries that are unimaginable.

How many billions of years have the earth been born? The number of billions of years is too huge and feels like just a number. However, if someone can live for billions of years and slowly experience it, they will know how long it is. .

In such a long time, any era may have been born. Even if some people can live for billions of years, it is impossible to experience all eras. They may miss it or forget it... Then modern people can only use technological means to understand all eras. If you study the past and the eras that the earth has experienced, what you probably understand is just a drop in the ocean.

"I don't know." Liu Changan shook his head, "Time is continuous and indivisible. The so-called time units and records of the times are all things humans do. What happened in those times that have not been recorded and discovered by humans Things cannot be positioned on the age scale of human invention.”

"There were already humans at that time, but modern humans have not found strong evidence of their existence at that time, so it seems that they never existed and are just regarded as myths?" Li Hongfang thought for a while and nodded with some understanding, "Just like the Xia Dynasty , even many highly developed civilization relics before the Xia Dynasty have been excavated, but the antiquity of our civilization is still not recognized by Western historical circles."

"Yes, I can't remember clearly, and I can't tell how many years ago it was... I can only call it the Mythical Age, but this feather... maybe it comes from that era." Liu Changan stared at the down feather, " There may still be a time when there are dragons and phoenixes.”

——

Well...I just reminded you in a very gentle and friendly tone, don't try to popularize knowledge about phoenix male and female, it will be embarrassing if you read too much.