After centuries of investigation, the reason dinosaurs vanished remains one of the most perplexing questions in all of science. After all, they dominated the world for over 140 million years. How these strong, adaptable creatures became extinct is a subject that has filled books, magazines, movies and dreams. Many theories have been developed. Beginning in 1980, Nobel-prize-winning physicist Luis Alvarez suggested that a massive comet or meteor was to blame. Other scientists pointed to scenarios such as violent volcanic activity, or perhaps a virulent dinosaur disease. Discover the latest theories about what killed the "Terrible Lizards," an event that left the earth ripe for the rise of another amazing species...human beings.

After centuries of investigation, the reason dinosaurs vanished remains one of the most perplexing questions in all of science. After all, they dominated the world for over 140 million years. How these strong, adaptable creatures became extinct is a subject that has filled books, magazines, movies and dreams. Many theories have been developed. Beginning in 1980, Nobel-prize-winning physicist Luis Alvarez suggested that a massive comet or meteor was to blame. Other scientists pointed to scenarios such as violent volcanic activity, or perhaps a virulent dinosaur disease. Discover the latest theories about what killed the "Terrible Lizards," an event that left the earth ripe for the rise of another amazing species...human beings.

Discover the startling facts and dramatic new theories currently revolutionizing our understanding of some ot he largest, most ferocious animals ever to walk the Earth, in THE DINOSAURS! Banishing the once-accepted image of cold-blooded brutes plodding toward extinction, tantalizing new findings now show that some dinosaurs were intensely active, fleet-footed hunters; others were devoted, family-rearing parents; and, most heretical of all, warm-blooded!

Flesh on the Bones invites you to solve a fascinating mystery. A mystery with clues scattered over 200 million years of history. Where did dinosaurs live? How fast did they move? And most intriguing of all, were they warm or cold-blooded? Find out what actually happened before the "masters of the planet" suddenly died. Scientific detectives have dedicated their lives to solving these age-old mysteries. The answers they've come up with will amaze you: a Triceratops could outrun a Tyrannosaur; the foot claws of one specimen indicate they used aggressive, warm-blooded hunting techniques; and to escape chilly Alaska, dinosaurs went south for the winter! These and other discoveries make the dinosaur more fascinating than ever.