Digging Up Dinosaurs (Let’s-Read-and-Find-Out Science 2)

How did those enormous dinosaur skeletons get inside the museum?Long ago, dinosaurs ruled the Earth. Then, suddenly, they died out. For thousands of years, no one knew these giant creatures had ever existed. Then people began finding fossils -- bones and teeth and footprints that had turned to stone. Today, teams of experts work together to dig dinosaur foss More »