In one example, two dinosaurs — Protoceratops and Velociraptor — were fighting in the desert.

在一个范例中，两种恐龙——原角龙和迅猛龙——在沙漠中搏斗。

And it turns out the embryo was not a Protoceratops, as they expected!

事实证明，胚胎不是原角龙，正如他们所料！

The Velociraptor is one its side, and the Protoceratops is crouching.

Velociraptor 在它的一侧，Protoceratops 蹲伏着。

Let's go through the process of identifying some character states for Protoceratops.

让我们来看看识别原角龙的一些角色状态的过程。

Can you correctly identify character states for the following three Protoceratops characters?

你能正确识别以下三个原角龙角色的角色状态吗？

Protoceratops and Liaoceratops do not have horns on their faces.

原角龙和辽角龙的脸上没有角。

Protoceratops has a longer frill than Liaoceratops.

原角龙的褶边比辽角龙长。

But there were abundant remains of one species of dinosaur from the same fossil formation: Protoceratops, a small, hornless ceratopsian.

但是，同一化石地层中有一种恐龙的大量遗骸：原角龙，一种小型无角角龙。

But we do know that Protoceratops and Velociraptor lived at the same time and interacted with one another as predator, and prey.

但我们确实知道原角龙和迅猛龙同时生活，并且作为捕食者和猎物相互影响。

Over time, the frill evolved into a larger and larger structure like what we see in Protoceratops known from the late Cretaceous of Mongolia.

随着时间的推移，褶边演变成越来越大的结构，就像我们在蒙古白垩纪晚期发现的原角龙中看到的那样。