What role do shape-shifting animals play in the moral teachings of Slavic folklore?

In Slavic folklore, shape-shifting animals, such as the fox or bear, often appear as cunning and transformative figures. These creatures can change their form at will, serving as a metaphor for adaptability and cleverness. The fox, for example, is frequently portrayed as deceitful yet smart, using its ability to transform to outwit stronger but less cunning adversaries. Tales of shape-shifters often carry moral lessons, encouraging traits such as wit and adaptability over brute strength. These narratives not only entertain but also impart cultural values and ethical teachings, offering insight into human nature and societal norms within Slavic cultures. How do these shape-shifting characters influence the moral landscape of these stories, and what do they reveal about human fears and aspirations?