There were a few things I didn't get to finish last time in talking about particularly gene transfer in mammals.

我们还有一些上次未完成的内容要讲,尤其是哺乳动物的基因导入

耶鲁公开课 - 生物医学工程探索课程节选

From a psychological point then, animals have evolved to be nice to their kin, particularly their children, and particularly in birds and mammals.

从心理学角度看，动物进化趋向于对自己的亲人有益，特别是自己的孩子，以鸟类和哺乳类为代表。

耶鲁公开课 - 心理学导论课程节选

You could do the same thing in mammals and here's one quick example of that, using a different kind of a vector, but inserting a gene into the fertilized egg of a mammal, in this case, a sheep.

你也能在哺乳动物上做到同样的效果,这里有另一个简短的例子,用了另一种载体,把一段基因注入哺乳动物的受精卵中,在这里我们用了绵羊

耶鲁公开课 - 生物医学工程探索课程节选

Birds and mammals invest in quality and not quantity, as opposed to fish and reptiles.

鸟类和哺乳类靠质生存,而非以量取胜，这与鱼类和两栖类不同。

耶鲁公开课 - 心理学导论课程节选

For birds and mammals, we don't have many kids but so we devote a huge amount of psychological energy to protecting the ones that we have.

鸟类和哺乳类，没有很多孩子,所以我们用大量的心力,去保护我们有的孩子。

耶鲁公开课 - 心理学导论课程节选

And in fact, this is how it works for all mammals.

事实上，这与哺乳动物相同。

耶鲁公开课 - 心理学导论课程节选