But the team did see single-celled organisms called ciliates in the sick urchins.

但该调查小组确实在患病的海胆中发现了名为纤毛虫的单细胞生物。

They also found predators on the herbivores, in the form of ciliates and predator bacteria, which feed on other bacteria.

们还发现食草动物的捕食者，如纤毛虫以及以其细菌为食的捕食细菌。

Stentor coeruleus is a part of a group called the ciliates.

Stentor coeruleus 纤毛虫群的一部分。

As is true of all ciliates, Stentor coeruleus have hair-like structures called cilia.

与所有纤毛虫一样，Stentor coeruleus 具有称为纤毛的毛发状结构。

This is a Suctorian, it is a ciliate just like Paramecium and Stentor.

这吸管虫，它一种纤毛虫，就像草履虫和 Stentor 一样。

But we know them as ciliates.

但我们知道它们纤毛虫。

And other ciliates, like  these paramecium bursaria, fill up their body with endosymbiotic algae  that exchange nutrients for protection.

而且其像这些草履虫滨螺一样的纤毛虫，用内共生藻类填满它们的身体， 藻类通过养来获得保护。

Leeuwenhoek's writings contained some of  the earliest descriptions of ciliates, like this bell-shaped Vorticella.

列文虎克的着作中包含了一些最早的关于纤毛虫的描述，比如这种钟形的涡鞭虫。

For James, our master of microscopes, the immense  breadth has made ciliates a bit of an obsession.

对于詹姆斯来说，我们的显微镜大师，纤毛虫的广泛多样性让有点着迷。

This is Apertospathula, a predatory ciliate that  feeds on other protists and microscopic animals.

这阿佩托斯帕图拉，一种捕食性的纤毛虫，以其原生生物和微型动物为食。

And in ciliates, the hairy structure that forms can be quite distinctive and, of course, practical.

而在纤毛虫中，形成的毛状结构非常独特，当然也很实用。

But we still need to talk about these ciliates because, they are inescapable.

但我们仍然需要讨论这些纤毛虫，因为它们无法避免的。

We spent our last episode focused  on one of those rare ciliates: the tailed Bryophyllum caudatum.

我们在上一集集中讨论了一种罕见的纤毛虫：带尾的布雷奥菲勒姆·考达图姆。

These are a subclass of ciliates called hypotrichs.

这些被称为下毛类的纤毛虫亚类。

They also found predators on the herbivores, in the form of ciliates (a type of protozoan) and predator bacteria, which feed on other bacteria.

们还发现了以这些食草动物为食的捕食者，存在形式纤毛虫（一种原生动物）和以其细菌为食的捕食性细菌。

So what is it that makes these ciliates rare?

那么，什么让这些纤毛虫变得稀有呢？

And cirri and cilia alike can  also help ciliates with eating.

而且，刚毛和纤毛都能帮助纤毛虫进食。

Who knows, perhaps Kahl would  have managed to find more of these ciliates in his favorite sampling areas.

谁知道呢，也许卡尔在最喜欢的采样区域能找到更多这样的纤毛虫。

What really sets hypotrichs apart from other ciliates is their thick hair.

什么真正让下毛类与其纤毛虫区别开来的它们的厚发。

But when it comes to messy evolution,   ciliates have even more to offer.

但说到混乱的进化，纤毛虫还有更多东西可以提供。