Petty plans

Your next pet could be genetically modified. Transgenic Pets announced its
intention to remove a protein from cats that causes allergies. And two other
companies want to improve canines, by creating seeing-eye dogs that live twice
as long, for example. But plans for superpets are multiplying faster than the
animals themselves. You can’t create GM animals without cloning, and scientists
have yet to clone a single cat or dog.