T.Rex’s puny arms were not useless at all; they served an unexpected and brutal purpose
T. Rex has been one of the most frightening creatures to have ever walked on land. As much as the creature itself, one of the most popularly discussed aspects is also the beast’s puny arms, making human beings wonder what a beast so massive in size did with tiny hands!There are tons of memes, cartoons, and jokes about a giant predator that supposedly couldn’t even scratch its own nose!Recently, researchers found a surprising use, and it seems those tiny arms weren’t useless at all!
T. Rex the dinosaur (Photo by Canva)
T. Rex’s tiny arms were a secret weapon used by the beast
Tyrannosaurus rex is famously known for its massive size and bite force, as an animal that could weigh around six tons and rip off hundreds of pounds of flesh in a single chomp. Its arms, by contrast, have always seemed like an afterthought.But paleontologist Steven Stanley of the University of Hawai’i at Mānoa argues that’s a mistake. According to History.com, Stanley believes the roughly three-foot-long limbs were tipped with curved talons, actually built for close-range slashing rather than grasping.Presenting his findings at the Geological Society of America’s annual meeting in October 2017, Stanley explained that the short length of the arms wasn’t a limitation, taking into consideration how enormous the T. rex’s head already was; longer arms would have simply gotten in the way.He described how the dinosaur could have used its claws to inflict deep, repeated wounds on prey in rapid succession, saying the arms would have permitted T. rex… to inflict four gashes a meter or more long and several centimeters deep within a few seconds.Stanley also pointed to the structure of the shoulder joint, describing it as an unusual near ball-and-socket setup that gave the arms a surprising range of motion. He compared the size of the limbs to the legs of an average adult man, arguing that packing so much strength into such a compact space made them more efficient as slashing tools!
However, there could be other purposes also
Dr. Jakob Vinther, a paleobiologist at the University of Bristol, has a different opinion. While speaking to National Geographic, he suggested the limbs were more likely tied to courtship behaviour than to hunting, arguing that it seems illogical to me to use such small arms to slash with.Thomas Holtz, a tyrannosaur specialist at the University of Maryland, College Park, offered a middle ground. He agreed the arms could plausibly serve as a weapon but pointed out a practical problem with Stanley’s theory, given their length and position, the dinosaur would basically have to push its chest up against the side of the victim to actually use them, as he told National Geographic. Holtz suspects the T. rex’s jaws remained its primary weapon of choice, with the arms providing a secondary role at best.
