T. rex arms were originally thought to be a useless trait. However, this discovery that Meraxes have the same kind of arms, despite not being closely related to the T. rex, ...

Rex. However, its close cousin, who reigned in Asia at the same time, is far less known even though it was almost just as ...

Extinct for 66 million years, T. rex still inspires speculation about its anatomy, behavior and fierce physique. One conundrum: its peculiarly short forelimbs, which have relatively limited mobility.

Predecessors of the T.rex group of dinosaurs had longer arms, according to scientists, suggesting there may have been a reason that they became reduced in both size and joint mobility.

Sleeping with “T-rex arms” is a common habit that has resonated in parts of the neurodivergent community online. Some TikTok users say that bending their wrists and tucking them close to their bodies ...

The T. rex is famous for its almost laughably small arms, but it isn’t the only one. Small arms, as compared to the rest of the body, are a relatively common feature among large theropods and ...

The precise purpose of T. rex’s relatively tiny arms has long been mysterious. Over the years, scientists have suggested that they might have been used to grasp struggling prey, to help resting ...

Ancestors of T. rex and other tyrannosaurids had larger arms, so there’s a clear evolution in the fossil record showing that some selective pressure pushed tyrannosaurid forelimbs to shrink.

Rather, T-Rex or dinosaur sleeping is simply the colloquial term for the way some people position their arms while they sleep, curling them inward close to the chest. This is superficially similar to ...

Bizarrely, they were. Today T. rex is almost as famous for its withered little arms as for its enormous teeth – they're so totally out of proportion, they almost look like they've been plucked ...

Arms and the T. rex. When the great dinosaur hunter Barnum Brown discovered the first T. rex fossils in 1900, he thought the arms were too small to be part of the skeleton. His colleague, Henry ...