A call to arms: UC Berkeley researcher has theory why T. rex sported tiny limbs

by Tony Hicks, Bay City News April 6, 2022April 5, 2022

Why Tyrannosaurus rex — one of the most fearsome dinosaurs that ever lived — developed such tiny arms might be better understood by what those appendages weren't designed not to do as much as by what they were, says UC Berkeley paleontologist Kevin Padian. (Image via Freepik)

Sometimes when there’s no obvious answer, looking the opposite direction may help.

For example, for more than 20 years, paleontologist Kevin Padian has taught a freshmen seminar at UC Berkeley called “The Age of Dinosaurs.” Invariably, the question always comes up: Why did Tyrannosaurus rex have such laughably small arms?

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