Why is lion shit better than bear shit?

This is a long time ago. It is said that a bear and a lion live in seclusion on the mountain. They grow vegetables every year and enrich the land with their own feces. But strangely, the food of lions is better than that of bears every year. Finally, the bear realized before he died: "This is lion shit better than bear shit!" " For a long time, it became a widely circulated story. ......