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Synopsis
Explores the many contradictory theories about what caused the dinosaurs to become extinct.
Debbie Bohn - Children's Literature
Dinosaurs have always been a mystery to mankind. Scientists have been studying dinosaur bones for hundreds of years and have made many discoveries. One mystery the scientists have not yet been able to solve is why dinosaurs all became extinct around the same time period. Over the years there have been many theories about this anomaly commonly referred to as the "great dying." Scientists have come up with theories about why the dinosaurs became extinct based on biology, the climate, and the galaxy. The author gives the reader a cursory overview of different theories and briefly explained why the theories have been refuted. There are two theories that seem to have great support from the scientific community including the "Cosmic Collision" theory and the "Volcanic Catastrophe" theory. Each of these theories is discussed in detail and the author summarizes why they are each probable theories. Young dinosaur enthusiasts will have a much greater understanding of the different theories of extinction and why it is difficult for scientists to know exactly what happened to cause the "great dying." There is a glossary with terms that may be unfamiliar to young readers and a section referencing other resources to learn more about dinosaurs. This book is part of the "KidHaven Science Library." 2004, Thomson Gale, Ages 9 to 12.
Editorials
Children's Literature
Dinosaurs have always been a mystery to mankind. Scientists have been studying dinosaur bones for hundreds of years and have made many discoveries. One mystery the scientists have not yet been able to solve is why dinosaurs all became extinct around the same time period. Over the years there have been many theories about this anomaly commonly referred to as the "great dying." Scientists have come up with theories about why the dinosaurs became extinct based on biology, the climate, and the galaxy. The author gives the reader a cursory overview of different theories and briefly explained why the theories have been refuted. There are two theories that seem to have great support from the scientific community including the "Cosmic Collision" theory and the "Volcanic Catastrophe" theory. Each of these theories is discussed in detail and the author summarizes why they are each probable theories. Young dinosaur enthusiasts will have a much greater understanding of the different theories of extinction and why it is difficult for scientists to know exactly what happened to cause the "great dying." There is a glossary with terms that may be unfamiliar to young readers and a section referencing other resources to learn more about dinosaurs. This book is part of the "KidHaven Science Library." 2004, Thomson Gale, Ages 9 to 12.—Debbie Bohn