[biblewonk]

And marriage developed because sexual risk is asymmetrical: Men and women face different risks when they sleep together. Men risk committing resources to care for children that may not be their own. Women risk being abandoned and left to care for a fatherless child. Marriage developed to minimize these risks. That's why no society - even among those that did have a social role for some expressions of male homosexuality - has instituted same-sex marriage until the past decade.

This is disappointing BS. Marriage was institued by God it didn't develop on it's own in some sort of evolutionary process.

[newgeezer]

Actually, when the article says, "marriage developed because sexual risk is asymmetrical," it swapped the cause and effect.