Anyone who has watched Animal World knows.
When a pack of wolves sets out, they usually move in groups and work in an orderly division of labor.
It's just like a certain piece of text.
A butcher returns home late, the meat in his carrying pole is sold out, leaving only bones. On his way encounters two wolves, trailing him from afar. The butcher fears and throws them bones. One wolf stops for the bones, the other continues following. Throw it again, the following wolf stops while the front wolf approaches. The bones are gone, yet the two wolves run side by side as before.
The butcher is in great distress, fearing attacks from both front and back. Looking around, he sees a wheat field, where the field owner piles straw, forming a hill. The butcher then runs and leans against it, releasing the pole while holding a knife. The wolves dare not approach, eyeing each other fiercely.
