Half of its body length was a well-developed tail that probably functioned as a counterbalance for its large head in addition to its strong hind limbs and a massive pelvis. While some paleontologists believe allosaurs were too large and clumsy to be good hunters, others think that they were intelligent and hunted their prey in packs. For all its fierceness and effectiveness as a hunter, this was probably not a graceful animal.
Broken bones seem to have been a common occurrence in the life of an allosaur.
X-rays of one fossilized specimen showed 14 ribs with healed fractures. These fractures were most likely caused by bellyflops that happened while running. All Rights Reserved . No images, graphics, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders.