Societies are still wondering what to do about same sex marriages and in some countries, polygamous marriages.

社会正在解决同性婚姻问题，在许多国家还允许一夫多。

Most cultures--most human cultures are polygamous.

大多数文化——大多数人类文化都是一夫多。

If they really are polygamous and polyandrous, it is bad, but acceptable.

如真是一夫多和一夫多，那是不好，但可以接受。

The war is, perhaps, severest between the males of polygamous animals, and these seem oftenest provided with special weapons.

战争也许在一夫多雄性动物之间最为激烈， 而且这些动物似乎最常配备特殊武器。

In fact, injecting vasopressin directly into a polygamous montane vole’s reward centre increases the likelihood of it becoming monogamous!

事实上，将加压素直接注射到一夫多山地田鼠奖赏中心会增加它变成一夫一可能性！

Now, that doesn't mean that there aren't some people who live in what are, in effect, polygamous relationships, but they are not legally married.

现在，这并不意味着没有一些人实际上生活在一夫多关系中，但没有合法结婚。