Parents need to know that there are some pretty graphic fight scenes between the rats. Some rats are killed and their broken bodies are described. One rat is blinded by another and there are several descriptions of a mouse tasting the blood of another rat during a fight. There are fights for revenge, cruelty, food, political position, and territory.
Positive messages:Characters are shown acting with bravery, mercy, and heroism in the face of many dangers.
Violence:Men kill rats in giant machines and rats fight gruesome wars with each other. Rats are described biting and clawing each other to death over food, territory, and leadership rights. They describe the taste of blood. One rat's back is broken when a human hits him. Another incident involves starving rats trying to eat newborn baby rats.
Sex:Mice pick mates, have babies, and nurse their babies.