According to a new study, and contrary to what was believed, it seems that the small arms of the T-Rex, after all, had the ability to do some operations, such as dragging its prey into its reach in order to devour it.
Most of us have joked with the ridiculously short anterior members of the Tyrannosaurus Rex, and it is a fact and common belief among the scientific community that these would be of little to no use, but a new study, which drew upon the analysis of some distant relatives of T- Rex such as the ducks and the American crocodile, came to bring light to the fact that, in fact, the front members of this colossal dinosaur, had much more utility than previously estimated.
As the team at Stockton University of New Jersey learned, the animal would have an elbow with a rather complex joint, which would allow a wider range of movement, such as pulling its victims to devour them.
Due to the fact that both the American crocodile and the duck have soft tissue joints similar to the T-Rex, it was possible to study the movements that they can achieve, and in doing so, the team has been able to obtain data that have not yet been available, due to the fact that the soft tissues are not conserved in the process of fossilization.
Through advanced x-ray technologies, the team then analyzed the humerus and ulna and determined what kind of movements would then be possible with their limitations. According to the results, it would probably be possible for the T-Rex to make the movements of rotation of the hand at a wide angle, thus being able eventually to turn the palm toward its chest.
The entire process of analyzing dinosaur movements and limitations is complicated and has been rather slow and painful, having in many situations led to misconceptions about how their bodies functioned, and T-Rex is probably the most complex case.