The eagle is the longest birds of life-span in the world,it can be up to 70 years old at age of all one's life,so long life-span that live
It must make the difficult but important decision at the age of 40
When the eagle lives to the age of 40
Its claw begins to wear out
Unable to catch preys effectively,the pecking of it becomes long and curved
Nearly touch the chest,its wings become very heavy,because its feather grows thick and thick
Is it hover very much straining to make
It must try very hard to fly to the mountaintop ,
Nest at the cliff,where is the stopover,can't hover .
The eagle impacts the rock with its beak at first,
Until totally coming off rightly ,wait back silently
The new beak grows,it is one handful of nails of beak longer that it will be used newly
The pulling out of one for one.After the new nail grows,
