Forward Head Posture Fix
With the differences in skull and teeth, theropods evidently bit in different ways. Recent studies have paired computed tomography (CT) scans and computer-modeled stress analyses to the architecture of theropod skulls (Figure 9.16). We now know, for example, that Allosaurus, with its relatively lightly built skull, used a slash-and-tear attack on its prey, in which powerful neck muscles drove the skull downward rather than delivering a crushing bite with the jaw muscles alone. When the head was retracted, the teeth sliced and tore flesh. Such a wound might not kill prey immediately - but blood loss and possible bacterial
There are other mysteries with Mononykus. What were the curious can openers on those stubby front limbs for They certainly did not have a long reach. Their use in defense seems doubtful. It is likely that Velocirap-tor would have little trouble dispatching one of these stub-armed turkeys. But that short arm is not puny it has very robust bones and presumably large muscles, and that big claw. Perhaps, if the beast took on the right posture, the claws would be useful for digging termite mounds and ant nests an anteater of the Cretaceous. Perhaps the forelimbs were used to grasp a mating partner. Perhaps they were employed for digging deep nests or burrows. Any, all, or none may be true.
And powerful neck muscles, T. rex could swivel and look behind as well as ahead. The neck bones of T. rex have big prongs on them, called neural spines. These are the attachment points for huge muscles that link up on the other end to the top of T. rex's head. The small size of the neck bones compared with the massive head they supported suggests that T. rex must have had massive neck muscles. What other benefit would those neck muscles have provided Feel the back of your neck when you're biting down and pulling on a piece of taffy. Those muscles on a T. rex would have been useful for yanking at food. Big ribs wrap around T. rex's neck. These huge bows of bone (along with the neck muscles) would have protected T. rex's windpipe from attack. They were the attachment points for many muscles controlling the position and movement of T. rex's neck.
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