At HMNS, our Wyrex skeleton has the best hands of any T. Rex ever discovered. Check out Wyrex's tail! Something bit off the rear half! Dinosaur tails housed thick muscles that attached to the thigh, making the tail part of the running apparatus. Wyrex would have lived many days or even months after losing its tail as evidenced by osteomyelitis (a bone infection). Take home one of your very own Wyrex plush, tail bandage and all!