Because they are strong enough to escape from their cages?
I hope this was tongue in cheek and I'm an idiot.
Because they aren't going to put this, along with strength genes, into the same species, at the same time, until they realize that they need to do this. Unless they are stupid, these will be gradual steps with no idiotic guards who all of a sudden decide to abandon their posts.
This is very important for understanding how these genes interact, and actually work in an organism. We don't know how our genes work, not really. We are interested in why we have a folded brain with more surface area than most primate. We don't really know why you aren't sitting in a tree shitting on things and trying to figure out how to eat food safely.
If the answer isn't "God did it", then I want to know how we got from single celled organisms to primates to people.
I don't understand yet how my soul, if there is such a thing, has chosen this year and this body to inhabit. I don't yet know how I am a person, capable of replying to you.
I would like to know why I am a person, and Chumpy the Chimp is limited to being a Chimpanzee. Not that chimps are stupid - but they are by far different. And I want to know why.
If it starts with rats, I'm good with that.