Two articles on -- gasp -- sex

Two articles about sex have appeared recently in Slate.

One of these is strictly biological, and little directly to do with humans. It's an examination of why there are only two sexes (almost always). Why, indeed? Read the article. Among other things, it tells about a couple of cases of (sort of) more than two sexes, among animals.

Although the relation to biology required that the article be written for reasonably intelligent adults, I don't think there's anything particularly offensive.

Warning: some of the links in the article require membership in certain sites providing scientific journal content.

The second article may be somewhat more offensive to some readers. It explores the question of why most special homes for the aged prohibit sexual activity. (It indicates some of the answers, without mentioning any moral prohibitions.) Lest you wonder why anyone would even consider allowing any such, there's at least one good reason. Some inhabitants of such homes are long-time marriage partners.

As I say, this doesn't explore all the sides of this subject, but it does a good job with some of them.

Thanks for reading.