Why are the piranah dangerous?

Piranhas are considered dangerous primarily due to their sharp teeth and powerful jaws, which allow them to tear through flesh quickly. They are known for their aggressive feeding behavior, especially when in schools, and can become highly territorial or defensive, particularly during breeding seasons or when food is scarce. While attacks on humans are rare, their reputation for ferocity is often exaggerated in popular culture. Nonetheless, their potential for aggression and sharp bites can pose a risk in certain situations.