Paleontologist Paul Sereno and an international team have named a new species of sail-backed predator, Spinosaurus mirabilis, from fossils pulled out of remote desert outcrops in Niger. The animal ...
WASHINGTON, Aug 15 (Reuters) - Tyrannosaurus subdued prey with raw power, using bone-crushing bite force. But other meat-eating dinosaurs that rivaled T. rex in size used different approaches.
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