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Spark your curiosity and enrich your scientific and technical research experience. MHEST.com is an innovative online complement to the McGraw-Hill Encyclopedia of Science & Technology, 10th Edition. You'll find regularly updated content including animations, videos, audio interviews, article commentaries, links to related sites, and more.

spacer SPOTLIGHT 16: DINOSAURS
Dinosaurs are a diverse and varied group of animals. Paleontologists have identified over 500 distinct genera and more than 1,000 different species of dinosaurs. Dinosaurs are represented on every continent, and their fossil remains provide important clues into the history of animals.     

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