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Fort Smith/Fayetteville News | 5newsonline KFSM 5NEWS | Get the local news and weather where you live from 5NEWS. Covering Fort Smith, Fayetteville, Bentonville, and all of Northwest Arkansas and the River Valley.

Relationship Between Eggshell Fossils and Dinosaur Blood? The Debate Continues

To see if dinosaurs ran hot or cold, researchers looked to their eggshells.