Sixty-five million years ago, the Age of Dinosaurs came to an end when a violent change led to mass extinction of life. The Smithsonian Institution's National Museum of Natural History may have some answers to explain this mysterious event. The Blast from the Past! Web site explains how a recently discovered deep-sea core contains new evidence of a devastating asteroid impact. Was dinosaur extinction the result of a flying object from outer space? Find out for yourself at http://paleobiology.si.edu/blastPast . One of Earth's mysteries may soon be solved at Blast from the Past!

Go back to a prehistoric time when the tyrannosaurus rex ruled the land, and dinosaurs roamed the earth. Zoom Dinosaurs provides an in-depth look at these terrifying creatures who continue to fascinate scientists today. Follow a stegosaurus's footsteps out to www.enchanted
learning.com/subjects/dinosaurs and immerse yourself in the world of dinosaurs. Once here, you can find out which dinos were the fastest, strongest and deadliest. But if hanging out with a T-rex isn't your thing, you'll love the jokes, games, geological timeline and other kids' activities found here. There's also information about fossils, dino-birds and the extinction of these awesome creatures. Zoom Dinosaurs has plenty of nifty animations, pictures and charts to put you on the front lines of the Jurassic frontier. Get ready for a dinosaur safari adventure. Just bring a good pair of sneakers, in case a velociraptor decides to turn you into an afternoon snack! (Disclaimer: This site now contains advertisements.)

From historians to movie audiences, people have long been fascinated with dinosaurs, but our understanding of them has continued to change from the early 1800s to the present. Dig into http://search.eb.com/dinosaurs and follow the great dinosaur debate through the ages. Using an easy-to-follow grid, this site compares scientists' evolving views of dinosaurs' anatomy, behavior and environment. Were dinosaurs warm-blooded or cold-blooded? Are they the ancestors of today's birds? Was their extinction brought on by an asteroid? By taking you to museums, libraries and dig sites across the globe, Discovering Dinosaurs examines these questions. Find out everything from how smart the dinosaurs were to what they ate. The site has all kinds of cool illustrations depicting these awesome beasts. Follow the dino tracks and return to the Age of Reptiles today!

Most kids dig dinosaurs, right? Well, so do paleontologists! But they do more than DIG them. They spend hours in labs trying to understand the dinosaurs' lives on the ancient Earth. Why don't you pop into the lab and see what's being discovered these days at http://science.nationalgeographic.com/
science/prehistoric-world.html . With this interactive site, you're in for a roaring-good time! Dinorama takes you through everything from excavating dinosaur skeletons to using computers in building models. Find out why dinosaur skulls are so fragile, watch the hatching of a dinosaur egg, and see why some scientists think these big lizards might really be related to birds.

If you've ever wondered about the reality behind the movie "Jurassic Park," take a look at National Geographic's "Dinosaur Eggs" at www.nationalgeographic.com/features/96/
dinoeggs . Follow in the footsteps of fossil hunters to see where they find real dinosaur eggs. Then virtually hatch the eggs along with the scientists. Next, see a 3-D model of what the dinosaurs might have looked like. Finally, learn more by visiting the online dinosaur egg museum.