Eagle is the longest-lived bird in the world. It can live for 70 years. However, when the eagle is forty years old, its claws are no longer sharp and it can't catch its prey; Its beak became long and curved, almost touching the feathers on its chest; Its wings are old, and its heavy feathers make it impossible to fly.

At this time, the eagle has only two choices, either to die or to undergo a painful transformation that lasted for one hundred and fifty days. It must fly to a very high mountain top, live there and find a rock to nest. Beat the rock with the aging beak until the beak falls off completely.

Then start a long wait of fifty days. When the new beak grows, the eagle endures severe pain, pulls out the aging nails on its claws with the new beak, and then begins a long wait of 50 days.

Wait until the new nails grow, and then pull out the aging feathers one by one with the new nails. After another 50 days, five months later, the eagle began to fly again and gained 30 years of vitality.

Extended data

Eagle's living habits: Eagle is a carnivore and will catch small animals such as mice, snakes, rabbits or birds. The eagle can catch goats, sheep and deer. Hawks usually move during the day. Even if it flies at an altitude of 1000 meters, it can clearly see the prey on the ground. This is the famous clairvoyance.

It has a pair of strong feet and sharp claws, which is convenient for catching animals and tearing their meat. Large beak, well-developed gastrointestinal tract and strong digestive ability. Rats that eat it will be digested in a short time. Undigested things, such as straw, will be wrapped in a ball and spit out. It is majestic and fierce, and is called a raptor in zoology.

Baidu encyclopedia-eagle

People's Daily Online-Yang li Ping: Forging Good Cadres Like "Eagle"