The worm turns around and is interpreted in America as a rabbit biting in a hurry. I don't understand why this is explained, but I want to ask the English God for an answer. Any allusions?
The turn of a bug is sometimes called "even a bug can turn", which means that even a weak thing like a bug will retaliate and fight back when it is cornered, which means "a rabbit will bite when it is anxious" in Chinese. This expression comes from Shakespeare's Henry VIII. The original text is that the smallest bug will be trampled over, and pigeons will peck for the safety of their chicks: the smallest bug will become (ferocious) when trampled over, and pigeons will peck (people) to protect their chicks.