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

社会正在性婚姻问题，在许多国家还允许一夫多妻制。

Most cultures--most human cultures are polygamous.

大多数文化——大多数人类文化都是一夫多妻制的。

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

如果他们真的是一夫多妻制和一夫多妻制，那是不好的，但可以接受。

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

战争也许在一夫多妻制的雄性动物之间最为， 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妻制的山地田鼠的奖赏中心会增加它变成一夫一妻制的可能性！

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妻制的关系中，但他们没有合法结婚。