Recently, I was talking to a researcher about a particular virus, and he mentioned that it has infected us “since fish.” Yes, fish have a time dimension. In two words, he had communicated reams of information: this virus has infected vertebrates ever since the divergence of the common ancestors of fish and mammals - somewhere around 395 million years ago. That implies that all of the species descended from those ancestors should have their own strains of the virus, which will have co-evolved alongside their host species.

If you thought the public debate over new genetic technologies couldn’t get any more muddled, just watch what happens as this product starts to show up in pet stores nationwide. Yes, that’s right, hypoallergenic cats. Specifically, they’re cats that don’t express the gene for the most significant feline allergen protein. They are not clones, nor are they genetically modified in the same way many of our crops are these days, but they’re also not quite “natural.