T. rex's big tail was its key to speed and hunting prowess

The powerful tail muscles of the T. rex made it one of the fastest moving hunters of its time. The largest tail muscles in animals are attached to upper leg bones, which provide the power stroke allowing fast foward movement. The tails of modern day animals and the T. rex are given their shape and strength by rib bones attached to the back bones. Reserach show that on the T. rex the ribs in the tail are located much higher then on modern day animals. The muscle mass in the dinosaur's tall were underestimated by as much as 45 percent.

In my opinion, this research is very helpful in the study of dinosaurs. It can explain a lot about the way the T. rex hunted and ate. Seeming how the T. rex was extinct long before humans were alive, this can help us in developing an idea of dinosaur's ways. I think researchers should continue studying dinosaurs. I would really like to know more about dinosaurs.