The reason is a microscopic organism called Toxoplasma gondii.

原因在于一种叫做刚地弓形虫的微生物。

Definitely behaviour that is beneficial to toxoplasma, but absolutely not for the rodent.

绝对是有益于弓形虫的行为，但绝对不是啮齿动物。

These creatures had grasping hands, arched backs, and thick muscular tails.

这些生物有紧握的手、弓形的背部和粗壮的巴。

Rodents that get infected with toxoplasmosis actually makes these rodents attracted to cat urine.

感染弓形虫的啮齿动物实际上会被猫尿所吸引。

A similar process happens with toxoplasma and mice which breeds in the digestive system of cats.

类似的过程发生在猫的消化系统中繁殖的弓形虫和老鼠身上。

In fact it's one of the most stable arches in nature, so sound that we still use it today.

事实上，这是自然中最稳固的弓形之一，如今我们仍然常常用到。

Billy advanced and drew away the drapery which screened the alcove of the bow window.

比利上前拉开遮住弓形窗壁龛的窗帘。

We're talking about toxoplasmosis, a disease caused by toxoplasma gondii.

我们说的是弓形虫，一种由弓形虫引起的疾。

Rather, it's because this is a perfectly--this is the adaptive strategy of the toxoplasmosis virus.

相反， 这是弓形虫毒的完善适应策略。

" Oh, Dodo, " said Celia, " will you not have the bow-windowed room up-stairs" ?

“哦，多多，”西莉亚说，“你不要楼上那间带弓形窗的房间吗？”

It is actually fairly rare in the US for women to come into contact with toxoplasmosis.

莱利：在美国，女性接触弓形虫的情况实际上相当罕见。

Smaller bows may be seen in the gorge on the plateau between the Upper and Lower Falls.

在上瀑布和下瀑布之间的高原峡谷中可以看到较小的弓形。

Now, but wait. If animals and humans evolved to prevent susceptibility to toxoplasma, why did DD get it?

等等，回过头来，如果动物和人会演化出抵抗弓形虫的能力，那为什麽DD会发呢？

If you are a rat and you have toxoplasmosis, you are perfectly healthy except for one thing.

如果你是只患有弓形虫的老鼠，除了一件事外， 你是健康的。

So is toxo manipulating our brains as an evolutionary strategy to get predatory cats to eat us?

那么，弓形虫操纵我们的大脑是否是一种让掠食性猫科动物吃掉我们的进化策略？

For example, mice infected with Toxoplasma were quicker to check out the far reaches of an elevated maze than their uninfected comrades.

例如，相比未感染老鼠，感染弓形虫的老鼠会更快地检查遥远高处的迷宫。

There's some recent research that ties schizophrenia to the possibility of toxoplasmosis, which is a disorder carried by cat feces.

最近的一些研究将精神分裂症与弓形虫的可能性联系起来，弓形虫是一种由猫粪便携带的疾。

Wolves infected with toxoplasma are more likely to wander away from their former pack to find a new one and are more risk-taking, more bold.

感染弓形虫的狼更有可能离开原来的狼群去寻找新的狼群，而且更冒险，更大胆。

Its bow-mounted camera looks like a device that cyclists might strap to their helmets (it has a larger one, pictured, mounted amidships).

它的弓形摄像头看起来像是骑自行车的人可以绑在头盔上的装置（它有一个更大的摄像头，如图所示， 安装在船中部）。

But mice aren't the only animals that end up with these parasites, and that's where humans, and all of toxo's other hosts, come in.

但是老鼠并不是唯一最终感染这些寄生虫的动物，而这正是人类和弓形虫的所有其他宿主进来的地方。