If anyone is still in need of proof that the theory of evolution affects far more than the narrow academic discipline of biology, he can find it here . The author, a certain Jenny Block, tells us that we have a lot to learn about what is "normal" or "natural" about human sexuality by looking at the sexual behavior of animals. "As much as we've evolved, it can be easy to forget that, at the core, we're animals, too." Not with Ms. Blockhead here to remind us. But judging from what she writes, it would be a happy thing to forget...if it were true. Among the points she makes in her article are these: They [animals] exhibit habits other than monogamy. They are polygamous and polygynous... Bonobos, for example, have multiple sexual partners at any given time in their life. Well then, let's hear it for the sexually liberated Bonobos! But before we take them as an example of what is normal or natural behavior, perhaps we should consider the fact t