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We may finally know why dinosaurs like T. rex evolved tiny arms

We may finally know why dinosaurs like T. rex evolved tiny arms
New Scientist Wednesday 20 May 2026, 00:01 UTC 1 min read
Key Points

Five different groups of predatory dinosaurs independently evolved disproportionately small arms, and it seems they did so because their heads became so large and powerful

Five different groups of predatory dinosaurs independently evolved disproportionately small arms, and it seems they did so because their heads became so large and powerful
Originally published by New Scientist Read original →

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