But size isn't everything and where on the femur the caudofemoralis is also important.

但大小并不是一切，股骨尾肌在股骨上的位置也很重要。

When the caudofemoralis retracts, it pulls backwards on the leg.

当股尾肌收缩时，它会向后拉腿。

This, is called the caudofemoralis, and it's a tail muscle with a tendon that attaches to the femur.

这就是所谓的尾股肌，它是一种尾部肌肉，带有附着在股骨上的肌腱。

Here is the femur of a hadrosaur or duck billed dinosaur and the spot where the caudofemoralis attaches is easy to identify.

这是鸭嘴龙或鸭嘴龙的股骨，尾股肌附着的位置很容易识别。

Had a caudofemoralis that was, even relatively to their enormous body size, significantly larger than that of modern lizards and crocodiles.

有一个尾股肌，即使相对于它们巨大的体型，也比现代蜥蜴和鳄鱼大得多。

Now based on this and many other muscle to bone attachment sites, it's possible to calculate the size of a caudofemoralis in a wide variety of different dinosaur species.

现在基于这个和许多其他肌肉与骨骼的附着点，可以计算出各种不同恐龙物种的尾股肌的大小。