The fossils are the oldest-known evidence of the false thumb, which is really an enlarged wrist bone called the radial sesamoid.

这些化石是目前已知关于伪拇指的最古老证据，伪拇指实际上是一块叫做桡侧籽的增大。

Carpals, Metacarpals and Phalanges. Femur. The Femur, or thigh bone.. ..

、和指。股。股，即大腿。

Okay, the panda's wrist bone adaptation acts like a clamp.

好的，熊猫的适应性就像一个夹子。

Also, the carpals in their wrists were elongate and made a greater contribution to the length of the wing.

此外，它们手处的伸长，对翅膀的长度贡献更大。

In 1896, newly invented x-rays were used to produce a radiograph showing the position of a bullet lodged in a boy's wrist bone.

1896年，新发明的X射线被用于制作一张X光片，清晰显示了一颗嵌入男孩的子弹位。

All these motions use gliding, or plane joints, like the one between the distal ends of your radius and ulna, and the carpal bones of your wrist.

所有这些运动都使用滑动或平面关节，比如桡远端和尺之间的关节，还有手的。

It's flexible, with an enlarged wrist bone which allows it to grasp and manoeuvre the bamboo with a dexterity and precision that a monkey would be proud of.

它灵活且较大，所以它们能以连猴子都会自豪的灵敏度和精准度来抓紧和操纵竹子。

Their texture is spongy except at the surface, where there is a thin layer of compact bone. Examples of short bones are the wrist and ankle bones.

它们的结构除表面为一层菲薄的密质外，其余部分如海绵般疏松多孔。短的实例包括和踝。

I think I'm going to get these numbers a bit wrong, I'm sure, but I think Peter mentions that that leads to death in a large percentage of people that break that hip or break that leg or break that wrist even.

我认为我会把这几个数字弄错一点，但我确定， 彼得提到这会导致很大比例的髋、腿或折的人死亡。