Scientists defend T. rex as only species of mighty Tyrannosaurus - Yahoo! Voices

T. rex still reigns as the king of dinosaurs, according to scientists who on Monday argued against a contentious hypothesis advanced this year that the...

By Will Dunham WASHINGTON (Reuters) - T. rex still reigns as the king of dinosaurs, according to scientists who on Monday argued against a contentious hypothesis advanced this year that the mighty m… [+4086 chars]

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