WASHINGTON, July 8 — Paleontologists said Thursday they had discovered a new giant carnivorous dinosaur species that had a massive head and tiny arms, just like Tyrannosaurus rex., suggest that small forelimbs were no evolutionary accident, but rather gave apex predators of the time certain survival advantages.book series — was dug up over the course of four years during field expeditions in the northern Patagonia region of Argentina, starting with the skull which was found in 2012.
Its arms were two feet long, “so it’s literally half the length of the skull and the animal would not have been able to reach its mouth,” said Makovicky. Makovicky believes that as their heads grew larger, it became the dominant tool of their predatory arsenal, taking on the function that forelimbs would have had in smaller species.
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