Although they are very light, bones are strong enough to support our weight.

虽然分量很轻，但是强大足以承载我们体重。

PROCESSES AND DEPRESSIONS IN BONES Bones have many projections and depressions.

凸起和下沉有许多凸出和下沉。

Number five. Weak bones. Your body's bones grow throughout your childhood.

脆弱。生长发育贯穿整童时期。

They learned this from the way the bones were joined together.

科学家是根据恐龙连接方式得知这些。

So Antonio is a complete skeleton and Bruno, it's 70 to 75 percent complete.

所以安东尼奥是一完整，而布鲁诺是完整70%到75%。

Or, can you change the bone structure of a person's face without surgery?

或者说，不进行手术，你能改变一人脸部结构吗？

In 2010, the Neanderthal genome was sequenced from ancient bones.

在 2010 古代测序中出现了尼安德特人基因组。

Are children's brains, their organs, their muscles, their bones, getting what is required?

幼儿大脑、器官、肌肉和生长是否得到了所需营养？

That irisin, which builds bone, would promote the production of sclerostin, which destroys it, may seem counterintuitive.

而能生成鸢尾素，竟然会促进会破坏硬化蛋白产生，这似乎违反常理。

Lucy constituted only 28 percent of a half skeleton (and only about 20 percent of a full one).

露西被发现头也只占半28%（只占一副完整约20%）。

So what explains the XXL bones? One possibility: big mamas.

那么如何解释超大型号呢? 一种可能是: 大鸟妈妈。

So that's what I like to think is the more grown-up approach to teaching you about your skeleton.

所以这就是我认为更成熟教你方法。

Changes in the bones of the hips, spine, feet and legs permitted human ancestors to walk upright.

臀部、脊椎、脚和腿部变化使人类祖先能够直立行走。

Calcium can continue strengthening your bones until the age of 20 to 25 when peak bone mass is reached.

在20-25岁之前，补充钙质可以促进发育。

Well, as these examples would suggest, the development of the facial skeleton is not fixed.

就像这些例子表明那样，脸部生长发育并不是固定。

These plates increase the length of your bones through proliferation of ossifying cells we call chondrocytes.

这些骺板通过化细胞增殖增加长度，我们称之为软细胞。

In particular, this is the only one with a really good complete set of plates along the back.

特别是，这是唯一一架有完整背部标本。

Most of the skeleton was missing.

大部分是缺失。

The United States is not the only country looking at exoskeleton technology.

美国不是唯一一关注外技术国家。

Sclerostin is a protein that actually stimulates the breakdown of bone.

硬化蛋白是是激发破坏蛋白质。