Dan would rather dig for dinosaur bones in his back yard than go to a "musty, smelly and dusty" museum with his mother, though all he uncovers is some trash and an odd looking stone which he keeps throwing to his dog Bouncer, to chase.
Dan didn't want to go to the museum with his mother, so he went into the back yard to dig for dinosaurs bones. When he found an odd-shaped stone he threw it to his dog to play with. Later at the museum he saw dinosaur bones and began wondering about the stone he'd found. This story teaches to look closely ...