Is it because they have a single fenestra behind the eye?

是因为它们眼睛有一个窗孔吗？

Looking at this lower jaw of a Tyrannosaurus you can see a large opening called the mandibular fenestra.

观察霸王龙下颌，您可以看到一个大开口，称为下颌孔。

Synapsids had one pair of openings in the skull, called a temporal fenestra, while the Sauropsids had two pairs.

合弓类动物上有一对开口，称为颞孔， 而蜥脚类动物有两对。

You, for example, have one pair of temporal fenestra in your skull, because you, my friend, are a synapsid.

例如，你上有一对颞孔，因为你，我朋友，是突触。

Please tick the box over the antorbital fenestra.

请勾选眶前孔上方方框。

Amniotes can be subdivided into several groups based on the number of holes or fenestra in the skull.

羊膜动物可以根据上孔或孔数量细分为几个组。

And the other one, the laterotemporal fenestra.

另一个是颞孔。

Not seen in this image, is the super temporal fenestra, which is located on the top of the skull here.

在这张图片中看不到是位于颅顶部超颞孔。

Now, look at the jar of the Pterosaur Anhanguera, and you can see that as in all Pterosaurs the mandibular fenestra has been lost.

现在，看看 Pterosaur Anhanguera 罐子，你可以看到，在所有翼龙中，下颌孔已经丢失。

Behind the orbit is the lateral temporal fenestra.

眼眶是外侧颞窗。

And they also have one in front of the orbit, with the orbit being here, and this one is called the antorbital fenestra.

他们在眼眶前也有一个，眼眶就在这里，这个叫做眶前窗。

If you remember from some of the previous lessons, we talked about how mammals have only a single hole or fenestra in the skull behind their eye.

如果您还记得之前一些课程，我们谈到了哺乳动物如何在眼睛上有一个孔或窗孔。