Someone should write a book about a hypothetical intelligent civilization that has a mating season lasting a couple weeks in August rather than a constant state of courtship etc. Would that society be more productive because they weren't distracted by the constant quest for love and companionship and sex? Or would they be less productive because people wouldn't have the motivation of impressing prospective mates year around? I do know one thing that would be different. Lot's of May birthday parties to attend.

Do animals that find a new partner every mating season end up with STD's? Or would the risk be lower by having several different partners, but only getting together once a year? What about Bonobo's? Any STD's among them?

The OP raises many questions.

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Spock Jenkins of the Vulcan Jenkins'.