Giant skulls drove T. rex to shrink its arms, new study suggests
TL;DR
A new study analyzing 85 dinosaur species finds Tyrannosaurus rex’s three-foot forearms shrank as the skull grew larger and stronger to tackle big prey, indicating an evolutionary trade-off where energy is diverted to head strength at the expense of the arms; the pattern appears across several giant carnivorous dinosaurs.
- The mystery of T. rex’s tiny arms might finally be solved CNN
- Why were T. rex’s arms so tiny? Paleontologists finally find an answer. Popular Science
- Why meat-eating dinosaurs like T. rex evolved tiny arms Phys.org
- Mystery of Tyrannosaurus rex’s Tiny Arms May Finally Have an Answer Sci.News
- T. rex’s tiny arms may have evolved for a surprisingly brutal reason ScienceDaily
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