Mama, Sister, and Brother are excited about the puppy they bring home from Farmer Ben's farm, even though she takes a lot of care.

When Brother and Sister visit the Bearsonian Museum, they luck out. A real dinosaur dig is taking place. What sort of fossils will they find? A Stegosaurus? A Spinosaurus? The mighty Tyrannosaurus rex? Dig in with the Berenstain Bears and find out!