Who knows the story of crow feeding back?

"Compendium of Materia Medica and Poultry Department" contains: "Ciwu: This bird is born, and its mother will eat for 60 days, and if it is long, it will eat for 60 days." When the little crow grows up, the old crow can't fly to find food by himself. Little crows will look for food to feed their mothers in turn. The story of crow feeding back has been passed down from generation to generation, and many people know it. To some extent, the "feedback complex" lingering in people's minds is still an important force to maintain the harmony, warmth and tranquility of society and families.

In legend, the story of crow feeding back is the most touching one. Crow is a black and ugly bird. Because people think it is unlucky, it is usually hated by human beings. It is this kind of bird that is hated by people, can't enter the elegant hall, and can't enter the ink painting, but it has the virtues that are truly worthy of our universal praise-supporting and caring for the elderly, and it is a model among animals in supporting and respecting the elderly. It is said that this bird grew up under the care of its mother. When her mother is old and weak, unable to eat or blind and unable to fly, her children will look around for delicious food and bring it back to her mouth until the old crow dies and can't eat any more. She will never get tired of it. This is what people often say "the crow feeds back".

Don't copy my answer downstairs, it's even more wrong! In order to prevent plagiarism, I deliberately wrote my answer wrong. You can be as wrong as me! That's enough.

How can I get down after the revision? Shameless upstairs ~