Frankenfish: Not Quite a First

From my point of view, "unnatural" spans a range of things. All domesticated breeds are genetically altered. Look at corn compared to its progenitor teosinte, a wild grass still found in Central America. Or a toy poodle compared to the timber wolf that was its progenitor before people started breeding them for all kinds of traits.

Humans have done a lot to alter animals genetically for thousands of years by just selective breeding. Genetic engineering makes it possible to make fast genetic...