because being attracted to women and wanting to have sex with women

因为吸引女性并且想和女性发生性关系
is one step to the road to having kids,

是产生后代的第一步
which is very good from an evolutionary perspective.

从进化论的角度来讲是件大好事
It so happens, though, in our modern environment

但是在现代社会中
that people have created images that substitute.

人们创造了图片替代品
So, instead of actually going out and seeking out women

无需再出去寻找女性
you could just surf the web for hours and hours

你只要花几个小时上网
and watch dirty movies and read dirty books

看色情电影和书籍就可以了
evolutionary adaptive dead ends.

进化适应论的死胡同
They're accidents.

这些只是意外而已
Why do you like chocolate bars, assuming that you do?

为何你喜欢巧克力呢假设你喜欢
It is not because your ancestors in the African savanna

不是因为你非洲草原上喜欢巧克力