It was actually really hard to get prairie voles to press a lever for a reward.

实际上，要让草原田鼠按下杠杆获得奖励是非常困难的。

You know, praying mantises are the exact opposite of voles, Morty.

螳螂完全和田鼠相反。

Prairie voles are furry little rodents that live throughout North America.

草原田鼠是遍布北美的一种毛茸茸的啮齿目动物。

Fish spawn and meadow voles harvest the wild meadows, and owls and foxes feed their young.

鱼儿也在产卵，田鼠则在野生的牧场上采获食物，猫头鹰和狐狸给它们的幼仔喂食。

The floor was entirely covered in straw, owl droppings, and the regurgitated skeletons of mice and voles.

地板上到处都是稻草和猫头鹰粪便，以及猫头鹰反刍的老鼠和田鼠骨头。

That's because a regular supply of water means a regular supply of prey, including voles and ground squirrels.

这是因为有着充足的水源遍意味着有着充足的猎物，这些猎物包括田鼠和地鼠。

It can hear a vole moving under half a meter of snow.

可以听到田鼠在半米深的雪下活动。

In the first phase, they had to teach the prairie voles how to open a door controlled by a lever.

在第一阶段，它们必须教会草原田鼠如何打开被杠杆控制的门。

The voles could distinguish between two doors, two levers, and two different outcomes.

田鼠能分辨出两扇门、两根杠杆和两种不同结果。

And we had some voles who never learned the task, and they were not included in the study.

我们有一些从未学习过任务的田鼠，我们没让它们进入研究。

No, I'm not a prairie vole. I'm me.

不 我不是草原田鼠 我就是我。

Toothless stopped trying to catch voles and leaped into the mud.

无牙停止了抓田鼠的努力，跳进了泥泞中。

The two voles got 48 hours to bond and grow fond… and then the lever pressing resumed.

每对田鼠有48小时黏在一起并增进感情，之后继续按杠杆。

Each of the trained voles were given the option of two levers and two doors again.

每对经过训练的田鼠又可选择两根杠杆和两扇门。

Do you know what a vole is, Morty?

知道田鼠嗎 Morty？

" And of course with them went all the voles and the birdlife, including kingfishers and bitterns."

“当然，随着它们一起消失的还有所有的田鼠和鸟类，包括翠鸟和鳽鹭。”

When researchers gave voles a compound that suppressed the effects of vasopressin, the pairs quickly fell apart, losing their devotion to each other.

然而当研究人员用一种化合物抑制后叶加压素的效果时，土拨鼠夫妇很快分开了，失去了对彼此的热爱。

In fact, injecting vasopressin directly into a polygamous montane vole’s reward centre increases the likelihood of it becoming monogamous!

事实上，将加压素直接注射到一夫多妻制的山地田鼠的奖赏中心会增加它变成一夫一妻制的可能性！

Have only one mate their whole life. Otters, penguins, the prairie vole.

而是一生只有一个伴侣 像水獭 企鹅 草原田鼠。

The corpse of a very small animal—a vole, by the look of it—lay on a clump of green moss.

一只非常小的动物的尸体——从外观上看是一只田鼠——躺在一丛绿色的苔藓上。