好莱坞电影中霸王龙奔跑追逐汽车的场面给我们留下了深刻的印象。但最近研究者发现,体重足有6000公斤重的霸王恐龙的后腿肌肉并不能提供足够的动力——它只能行走,不能奔跑。所有动物的骨骼肌部由收缩性蛋白质组成,肌纤维的横断面决定产生动力的大小。但在体形增长的时候,肌肉能力的增长速度比体形慢。所以从每单位体重肌肉产生的动力来看,大体型动物不如小型动物。陆地上 We were very impressed with the Tyrannosaurus run chasing the car in the Hollywood movie. But recently, researchers found that the hindquarters muscles of a 6,000 kg weight Boss Dinosaurs do not provide enough power - they can only walk and can not run. The skeletal muscle of all animals consists of contractile proteins, and the cross-section of muscle fibers determines the amount of power produced. However, when the body shape growth, muscle growth rate slower than the body shape. So from the power of muscle produced per unit weight of view, the general type of animal is not as small animals. On land