Promotes respect for wild animals and their natural surroundings throughout the story.
Mild cartoon action: A T. rex chases and roars at other animals; he throws a man and crushes a car, stomps on cave homes. Human construction workers carry shotguns and threaten the wolf pups, who scare them off and then run from them. An asteroid hits the earth in a flashback to prehistoric times.
A sprinkling of potty humor: "turd," "kicked butts," "pee." A bird farts and poops.