Rocks Reveal More Dinosaur Secrets

The rocks in which dinosaur fossils are embedded can often tell scientists more about the creatures than the bones themselves. The rocks that enclose fossils offer clues as to what dinosaurs were up to and where they spent their time. Researchers say Triceratops avoided rivers, duck-billed dinosaurs lived near rivers, and T. Rex was everywhere.

U.S. scientists say they can learn a lot about where dinosaurs lived by looking not at their fossilized bones but at the rocks in which the bones were found.

Researchers say they believe Triceratops avoided rivers, duck-billed dinosaurs lived near rivers, and T. Rex was everywhere, probably because the beast went wherever there was meat, LiveScience.com reported Tuesday.

"We can use the rock enclosing these fossils as clues to what they were up to," paleontologists Tyler Lyson at Yale University said. "We're using what paleontologists usually throw away when excavating the fossils as clues to where they're spending most of their time."

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