有时候玩耍会导致动物做一些它通常不会做的事情。

Sometimes playing results in an animal doing something it would not normally do.

youdao

自1975年以来，人道对待动物的倡导者们将他们的目标扩大到反对用动物做毛皮、皮革、羊毛和食物。

Since 1975 advocates of humane treatment of animals have broadened their goals to oppose the use of animals for fur,leather, wool and food.

youdao

我见过大猩猩在野外捕杀动物做食物。

I saw chimpanzees in the wild hunt and kill for meat.

youdao

And so probably does each animal feel about the particular things it tends to do in the presence of certain objects.

所以，可能每种动物,倾向于做特定的事情,在某物面前。

耶鲁公开课 - 心理学导论课程节选

It is, of course, important if you use animal testing to treat the animals with as much dignity as possible.

如果要用动物做实验的话，请给予这些动物最大的尊严，我认为一点十分重要。

需要动物实验吗？ - SpeakingMax英语口语达人

In fact you do not have to kill any animals for this kind of research because we do everything in a test tube.

其实，做这种研究,你根本用不着杀害任何动物,因为试验都是在试管中进行的。

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