How did crooked star get his crooked jaw?

Crookedstar, a character from the "Warriors" series by Erin Hunter, got his crooked jaw as a result of an accident during his early life. While trying to save his younger brother, he was caught in a trap set by twoleg humans, which resulted in his jaw being mangled and left permanently disfigured. This injury not only gave him his name but also shaped his character and leadership style throughout the series.