Mumwe mukana ndewekuti nhengo dzemberi dzaibata nyama yairwisana nayo payakaurayiwa nemakumbo akakura aTyrannosaurus. Pfungwa iyi inogona kutsigirwa nekuongororwa kwebiomechanical. Mapfupa epamberi eTyrannosaurus rex anoratidza mapfupa akaoma kwazvo epamberi, ayo akatsanangurwa seuchapupu hwekuti akagadzirwa kuti atsungirire mitoro inorema. Muswe we biceps brachii weTyrannosaurus rex mukuru aikwanisa kusimudza makirogiramu 199 (439 lb) uri woga; mimwe mhasuru senge brachialis yaizoshanda pamwe chete ne biceps kuita kuti elbow flexion iwedzere kusimba. Mhasuru ye biceps yeTyrannosaurus rex yaive yakasimba zvakapetwa ka3.5 seyakaenzana neyemunhu.
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