As varied as the animal kingdom's anuses are, none of them have bones.

尽管动物王国的肛门种类繁多，但没有一个肛门是有骨头的。

During life's three billion-plus year journey on Earth, anal evolution happened independently many times in different branches of life.

在生命在地球上 30 亿多年的旅程中，肛门进化在不同的生命分支中独立发生了许多次。

And so over 40 treatments of radiation and they put a balloon up your butthole.

因此，进行了超过40次的放射治疗，在你的肛门里放置了一个气球。

Or had your butt plug unexpectedly taken over by Ukrainian hackers?

或者你的肛门扩张器意外地被乌克兰黑客接管了？

Suffice to say, it looks like what would happen -if an oyster had a butthole.

可以说，这看起来就像是牡蛎长了肛门会发生的情况。

Specialized tube feet can be used for feeding and respiration, though many sea cucumbers actually breathe through their anuses.

专门的管脚可用于进食和呼吸，尽管许多海参际上是通过肛门呼吸的。

He put one of his feet on the fish and slit him quickly from the vent up to the tip of his lower jaw.

用一只脚踩在鱼身上，从肛门朝上，倏的一刀直剖到它下颌的尖端。

So that connection, maybe that subconscious thing of when you're among those books, your sphincter just unlocks just a little bit, maybe?

所以这种联系， 也许就是当你置身于那些书本之中时，你的肛门括约肌就会不由自主地放松一点点，也许？

Even now, I'm as high as a giraffe's arsehole and spaced out as a ninth-grader's essay trying to meet the page limits.

至现在，我依然高得像长颈鹿的肛门，脑袋空得像一个九年级学生为了达到页数要求而写的作文。

Certain species of crabs and pearlfish take advantage of this rhythmic action and, once the sea cucumber's anus is dilated, they shimmy in and take shelter.

某些种类的螃蟹和珍珠鱼利用这种有节奏的动作，一旦海参的肛门扩张， 它就会潜入并躲避。

I don't like him very much, and as we'll see in episode two, he kind of is a cat anus, although that's unfair to cat anuses.

我不太喜欢， 而且在第二集中我会看到，确有点像猫的肛门， 尽管这对猫的肛门不公平。

We — and all animals from the simplest worms on up the Tree of Life — are really just tubes, corridors of tissue running from a mouth to an anus.

我——以及生命之树上最简单的蠕虫——际上只是管子，从嘴到肛门的组织走廊。

Fart also has a relative in Ancient Greek  and that brings us on to one of the many clandestine anal excretions buried  in our language: the word partridge.

放屁一词在古希腊语中也有一个同源词，这引出了我语言中许多隐秘的肛门排泄物之一：鹧鸪这个词。

Oxygen from the air enters the blood through capillaries in the walls of these air spaces, and the blood release carbon dioxide into the air spaces to be exhaled.

消化系统由从口腔延伸到肛门的管道组成。

By loosening the attachments of internal tissues then quickly softening and contracting their muscles, many species are capable of shooting a wide range of organs out of their anuses.

通过松开内部组织的附着物，然后迅速软化和收缩它的肌肉，许多物种都能够从它的肛门中射出范围广泛的器官。

In fact, the enteric nervous system, which is an extensive mesh-like network of neurons that controls your entire digestive tract from the esophagus to the anus, doesn't even require the brain at all.

事上，肠道神经系统是一个由神经元组成的网状网络，控制着从食道到肛门的整个消化道，它至不需要大脑控制。

In fact, the enteric nervous system, which is an extensive mesh-like network of neurons that controls your entire digestive tract from the esophagus to the anus, doesn’t even require the brain at all.

事上，肠神经系统是一个广泛的网状神经元网络，控制着从食道到肛门的整个消化道，它至根本不需要大脑。

So, for instance, there's no evidence that oral and anal characteristics, the personality characteristics I talked about – about being needy versus being stingy – relate in any interesting way to weaning or toilet training.

因此，例如，没有证据表明口腔和肛门的特征，我谈到的性格特征——关于需要和吝啬——以任何有趣的方式与断奶或如厕训练相关。

Now, I'm quite sure that you're familiar with the key players here — they're the hollow organs that form the continuous tube that is your alimentary canal, aka the gastrointestinal tract, which runs from your mouth to your anus.

现在，我很确定你对这里的关键选手很熟悉——它是形成连续管子的中空器官，也就是你的消化道，也就是胃肠道，从你的嘴延伸到你的肛门。

In your mouth, in your esophagus, and at the other end of things, at your anus, you have stratified squamous epithelial tissue, just like your epidermis, to help resist the abrasive action of like, chewing, like corn chips, maybe.

在你的嘴里，在你的食道里，在东西的另一端，在你的肛门里，你有分层的鳞状上皮组织，就像你的表皮一样，帮助抵抗研磨作用，比如咀嚼，比如玉米片，也许。