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

实际上，要让草原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.

螳螂完全相反。

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

可以听到在半米深的雪下活动。

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

能分辨出两扇门、两根杠杆两种不同结果。

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

鱼儿也在产卵，则在野生的牧场上获食物，猫头鹰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猫头鹰粪便，以及猫头鹰反刍的老骨头。

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，这些猎物包括地。

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

每对有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.

每对经过训练的又可选择两根杠杆两扇门。

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

草原是遍布北的一种毛茸茸的啮齿目动物。

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

不 我不是草原 我就是我。

Fireheart quickly collected a vole from the fresh-kill pile and carried it across the clearing.

火心迅速从新鲜猎物堆中捡起一只，并带着它穿过空地。

Do you know what a vole is, Morty?

知道嗎 Morty？

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

无牙停止了抓的努力，跳进了泥泞中。

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。

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的奖赏中心会增加它变成一夫一妻制的可能性！

In phase 3, they took a quick break from the lever pressing and introduced each vole to a member of the opposite sex.

在第三阶段，它们暂停按杠杆活动，转去认识异性成员。

" The river's quiet today, " Fireheart mumbled through his mouthful of vole.

“今天河水很安静，”火心用嘴里的咕哝道。

" Come with me." Fireheart obeyed, pausing only to snatch a vole from the pile of fresh-kill.

“跟我来。”火心服从了，只是停下来从一堆新鲜猎物中抓起一只。

Let me finish this vole first.

让我先完成这只。