原文视听

It's a limited resource I guess.
还真是抢手货啊
What the scientists did was to
科学家所做的
recreate the drinking opportunities offered to monkeys on the island
就是在受控的环境中
but in a controlled environment.
重演猴子在岛上喝酒的情况
They monitored the monkeys by a collar
它们颈部安有特殊装置
so they knew exactly how much was being drunk
可监控酒精的摄入量
and what different effects it was having.
及其产生的不同效应
You can see this animal climbing up into this chamber.
这只爬进了进去
They are sippers.
它们在吸吸管
But they're all free to choose whether to have alcohol or not.
喝不喝完全取决于它们自己吗?
Exactly.
没错
This male here is repeatedly coming up and wants to drink this alcohol.
这只雄猴想喝酒 所以不断地往上爬
Do you see different types of behaviour once they've had alcohol or not?
它们饮酒后 你有看到不同的行为特征吗
Some animals become relaxed
有的猴子变很放松
or appear to become sedate
或者很安静
even clumsy.
甚至很笨拙
Some of these guys are running around like crazy
有的猴子疯狂地飞奔
playing doing dangerous things.
嬉打 甚至做出危险动作
They become disinhibited.
它们变得肆无忌惮
They do things you don't typically observe in these monkeys
做一些平时少见的事
because they've had this dose of alcohol.
就是因为饮用了这么多酒精
The guy who looks like he's swinging on the lampshade up there would die.
在灯罩上荡秋千的那只 真是凶多吉少

重点解释

You can see this animal climbing up into this chamber.这只爬进了进去

climb up爬上； 攀援

Henry will climb up the wall if he finds out you've been lying to him.

如果亨利发现你一直对他说谎，他会恼羞成怒。

Cats often find it easier to climb up a tree than to climb down.

猫爬树往往是爬上去比爬下来容易些。

But they're all free to choose whether to have alcohol or not.喝不喝完全取决于它们自己吗?

free to自由；免费

You're free to travel where you will in the country.

在这个国家里，你想上哪儿去就可以上哪儿去。

She is not free to follow her own inclination in the matter ofmarriage.

她的婚姻不能自主

whether or not无论是 ... 或 ...；

Whether or not he will stay, I really don't care.

他要留下来还是要走，我真的不在意。