And in your chest area, we have your ribs, your ribs, that's the bones here.

在胸部，有肋骨，肋骨，就是这里骨头。

It had a shell made of tough skin over strut-like ribs, like the leatherback.

它有个由坚韧皮肤制成外壳，上面有支柱状肋骨，就像棱皮龟样。

And this could help explain why it had those wide ribs ... and where turtle shells came from.

这可以帮助解释为什么它有那么宽肋骨… … 以及龟壳来源。

It was a horse that " stood over" a good deal at the knee, and in the darkness seemed to have innumerable ribs.

那是匹膝盖处“站” 马， 在黑暗中似乎有无数肋骨。

In theory, it makes sense for wider ribs to have evolved for digging, but right now that's just based on what we've seen in one species.

从理论上讲， 为挖掘而进化出更宽肋骨是有道理，但现在这只是基于我们在个物种中看到情况。

It's said that we're built with 206 bones, but 1 in 8 of us have an extra pair of ribs, some people can even have a pair less.

据说我们有 206 块骨头，但是八分之人有对额外肋骨，有些人甚至可能少对。