Why did the eagle knock off its mouth on the cliff wall?

Remember the familiar story of chicken soup with dog blood and soul? As an old composition material, I have never considered its authenticity.

"The eagle is the longest-lived bird and can live to seventy years old. When it reaches 40 years old, its beak, claws and feathers begin to age. At this time, it must fly to the cliff, knock off its beak with rocks, let a new beak grow, pull out its nails, let new claws grow, pull out its feathers and let new feathers grow. Five months later, it can fly again. So it can live for another 30 years. "

There is even a deductive version of the story of the baby eagle and the mother eagle, Barabara.

This is a widely circulated inspirational story. It is said that someone has made relevant videos. If you want to know whether it is true or not, you might as well find out what the eagle is here.

Shell rumor smashers have found an English version of this legend, entitled "The Rebirth of the Eagle". Please note, however, that actually translating the word eagle into "eagle" is not exact, and the correct translation is "eagle". The eagle and the eagle belong to the family Eagles, but the eagle belongs to the subfamily Erinaceae, and the eagle belongs to the family Eagles. Therefore, the "eagle" in this story is actually not an eagle. By the way, the bird shown in the attached video is the vulture, the national bird of the United States.

Next, is the eagle the oldest bird? The longest life records of wild vultures are 2 1 year and 1 1 month, and those domesticated artificially are much longer and can live to 48 years old. This is because, in the harsh natural environment, animals just die of aging. However, in any case, the eagle will not live to be 70 years old. Besides, the longest known bird is not carved. Some wild albatrosses can live to be 59 years old, and Andean vultures in zoos can live to be 80 years old. It is said that a blue-yellow macaw named Charlie lived to 1 1 1, but this result is not reliable.

So, this set of reborn self-abuse behavior (? ) Is it feasible? It is nothing new for birds to change their feathers. In fact, they often lose their hair, mainly during the breeding period, so many birds have two appearances: reproductive feathers and non-reproductive feathers. The tips of claws are horny, just like our nails. If a nail falls off, it can grow back. Where's the beak The bare beak protrudes from the hairy bird's head, which looks like a strange independent part, but in fact it belongs to a part of the skull. This is the skull of a golden eagle. You can see that the beak and skull are connected.

Besides, the beak is not unconscious. The surface of the bird's beak is covered with a layer of nail-like keratin, while below it is sensitive and fragile tissue, similar to "live meat" under human nails, and then below it is bone. If something penetrates this layer of cutin, birds will also feel very painful. In order to avoid fighting and hurting each other, some industrialized chicken farms will cut off the beak tips of chickens. Some animal protection organizations think it's cruel. Therefore, if the bird's beak is really knocked out, it is equivalent to knocking out the upper and lower jaws, and even the bones are flesh and blood-terrible, and the shell rumor mill strongly believes that it is not suitable for children.

In addition, in the five months of "rebirth", either the claws don't grow, or the mouth doesn't grow well, or the feathers are not complete and I can't fly-I can't hunt, so what can I eat? Reptiles with slow metabolism (such as turtles) can survive without eating for five months, while birds are animals with fast metabolism and will undoubtedly starve to death.

Myth cracking. The rebirth of the eagle ... oh, no, the rebirth of the eagle is just a legend, impossible.

Resources and pictures come from the Red Queen of Shell Net.