For generations, the tiny arms of Tyrannosaurus rex have stood as one of nature's great riddles — a seeming joke played by evolution on its most fearsome creation. A new study from UCL Earth Sciences now reframes the question entirely: the arms did not shrink because they were useless, but became useless as the skull grew into something far more powerful. Across five independent dinosaur lineages spanning millions of years, evolution arrived at the same answer — devastating jaws, expendable arms — a convergence that speaks to the deep logic written into the relationship between predator and pr
T. rex's tiny arms evolved as its deadly bite became the ultimate hunting weapon
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This is a paleontology article about dinosaur evolution, not a geopolitical event. No international implications exist.
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Paleontological research on dinosaur evolution has no direct economic implications for modern markets, sectors, or consumer behavior.
No direct impact on consumers or households. This is pure scientific research with no commercial applications or market relevance.
No regulatory or policy implications. This is academic paleontology research that does not affect economic policy, trade, or governance.