Anatomical structures, or physiological mechanisms, with no apparent purpose present challenges to evolutionary biologists.

打嗝在解剖结构或者生理机制上并没有显而易见的用途，这使解释它变成了一个对于进化生物学家的挑战。

Nearly 350 species of fish have specialized anatomical structures that generate and detect electrical signals.

近 350 种鱼类具有产生和检测电信号的特殊解剖结构。

If you ask me, all of that is infinitely more interesting than memorizing what goes where and pretending like a " backbone" is really an anatomical structure.

如果你问我，所有这些都比记住什么去哪里和假装“脊柱”是一个真正的解剖结构有趣得多。

But other than having me stand in front of a giant x-ray machine for 10 straight minutes — I can't think of a better way to walk you through the major anatomical structures of your skeleton.

但是除了让我在一台巨大的 X 光机前站 10 分钟——我想不出更好的方法来带你了解骨骼的主要解剖结构。