Dinosaurs lived on earth for millions and millions of years.  Then they vanished completely.  What happened?  Why did they all die?  No one really knows for sure.

Everything that we do know about dinosaurs we know from the fossils that they left behind.  Fossil teeth tell us what a dinosaur ate.  Fossil leg bones tell us us how a dinosaur might have walked.  Footprint fossils help us guess how much a dinosaur weighed or if dinosaurs travelled alone or in a herd.

Fossils can only give us so much information.  We have to use our imaginations to picture how these fascinating creatures really looked, how they lived, and how they died.

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