Yes, but marriage? They don't know any better. That's the same as asking "why do humans wear clothes and they don't?" it's just the way it is.
It's the root behavior I'm talking about. Outwardly, marriage was and to an extent still is an institution for reasons of property and peace. It has grown to insure a good amount with the state, it enables options for your future and for the future of your child/children, while also providing benefits and opportunities. But it also has much deeper set meanings that formulate what it is today, several of which draw itself to nature. Of course, animals can't have a ceremony and sign a piece of paper (Nor, I'm sure, would they want to), but that doesn't mean they still can't stay with and take care of a mate and children, a major foundation of what marriage is. Taking care of each other, one of those deeper set meanings.
Then again, there are advantages to staying single or simply being married under the broomstick. It's a choice. All that is really important in a relationship is you Love the person and that you are well together. c:
I think the problem is that the Constitution says "matrimony shall be made between a man and woman" so it would be outlawed but it also says "the right to pursuit happiness" which breaks the other part of it.
I forget.
THE CONSTITUTION DOES NOT SAY THAT. :C
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