How does the passage suggest nature can communicate warning signs?

The passage implies that nature can communicate warning signs through a subtle sound, like the ponies. This suggests that specific, often overlooked auditory cues serve as indicators of changes or potential threats in the environment. The ponies may represent a broader indication that nature communicates through the behaviors or sounds of animals, which can alert humans to varying situations, such as impending danger or environmental shifts. By focusing on this subtle sound, the passage emphasizes the importance of being attuned to the less obvious signals that nature provides, rather than only considering overt or dramatic instances such as violent storms or visible shifts in wildlife behavior.