One day three children playing outside decide to take a rest under a big oak tree. As they drift off to sleep, little did they know that they are lying upon a path or 'bridge' that the animals cross one by one, starting with the smallest. As parents read this book to their children at bedtime, they should mimic the animals walking across the bridge on the children's bellies. Small ants tickle, frogs hop, porcupines poke, and the snake slithers; don't move or he may bite!