T-rex may have used small arms for mating, discovery of Meraxes

There has been much speculation about why some dinosaurs had small arms. The unearthing of a well-preserved relation of the T-rex has shed more light on the species.
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Meraxes gigas dinosaur had a big body and tiny arms like T. Rex

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If the Tyrannosaurus rex existed for millions of years, how come its arms didn't get longer? - Quora

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The 120-year search for the purpose of T. rex's arms

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New dinosaur species was discovered by paleontologists, named the giant carnivorous dinosaur species Meraxes gigas. - ABC11 Raleigh-Durham

T-rex may have used small arms for mating, discovery of Meraxes gigas dinosaur suggests, World News

Dinosaurs: Why did 'T. rex' have such tiny arms?, Science

New dinosaur species was discovered by paleontologists, named the giant carnivorous dinosaur species Meraxes gigas. - ABC7 Chicago

Why did dinosaurs have small arms?