Once a research animal hits the floor and becomes an escapee, says Herzog, its moral standing is instantly diminished.

赫尔佐克说，一旦研究用的动物逃走了，道德上的标准立刻减弱。

There are, however, worldwide ethical codes that explicitly state that animal research and testing should come before human testing and research.

然而，世界范围内的道德准则明确规定，动物研究和试验应先于人类试验和研究。

Once the research animal hits the floor and becomes an escapee, says Herza, its moral standard is instantly diminished.

Herza 说， 一旦研究动物撞到地板上并成为逃犯， 它的道德标准就会立即降低。

Research animals tend to become obese, have weak immune systems, and are more susceptible to cancer-- and that's before the experiments begin.

研究动物往往会变得肥胖， 免疫系统较弱，并且更容易患癌症——这是在实验开始之前。

So I think you get an idea of what these rangers and scientists are up against as they research the animals here and fend off poachers.

所以我想你现在能够知道这些护林员和科学家在这里研究动物和抵御偷猎者时面临着什么了。

Like a few years ago, he started researching animals for a book he was writing, and it turned him vegan.

就像几年前一样， 他开始为自己正在写的书研究动物，这让他成为了素食主义者。

York University professor Kristin Andrews, who researches animal intelligence, suggests that there are lots of cognitive tasks – remembering how to get food, recognising objects or other beings – that animals do without necessarily being self-aware.

约克大学研究动物智力的教授克里斯汀·安德鲁斯认为，动物在没有自我意识的情况下也能完成许多认知任务，例如记住如何获取食物、识别物体或其他生物。

There are, however, worldwide ethical codes that explicitly state that animal research and testing should come before human testing and research and you know these are codified in the Nuremberg code and the declaration of Helsinki.

然而，世界各地的伦理法规都明确规定，动物研究和试验应该先于人类试验和研究，你知道，这些都被编入纽伦堡法典和赫尔辛基宣言中。