Metzl predicts that parents will adopt genetic engineering for their children and this could lead to a huge divide between those who can and will and those who can't or won't.
All dogs are the descendants of wolves, from chihuahua to Siberian Husky, dachshund to beagle. People began to breed dogs to exaggerate particular traits. Now these dogs hardly look related.
I wonder if the future of humanity will go to the dogs; so much variety among "us" as the genetic engineering becomes more creative that we're hardly recognizable as the same species.