After the neighborhood basketball court is vandalized, Ziggy and his friends decide to form a club called the Black Dinosaurs and build their clubhouse in Ziggy's backyard where they find a mysterious cache of buried bones.
Presents a photographic introduction to skeletons, including humans, mammals, birds, fish, reptiles, and amphibians, and looks at specific bones and bone structures.
The more people learn about their hardworking heart, breathtaking lungs, and brilliant brain, the more they marvel at the amazing machine that's called the human body.