Mass fossil site may prove tyrannosaurs lived in packs
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SALT LAKE CITY (AP) - Ferocious tyrannosaur dinosaurs may not have been solitary predators as long envisioned, but more like social carnivores such as wolves, new research unveiled Monday found. Paleontologists developed the theory while studying a mass tyraMass fossil site may prove tyrannosaurs lived in packs
SALT LAKE CITY (AP) - Ferocious tyrannosaur dinosaurs may not have been solitary predators as long envisioned, but more like social carnivores such as wolves, new research unveiled Monday found. Paleontologists developed the theory while studying a mass tyrannosaur death site found seven years ago in the Grand Staircase-Escalante ... Read more