What Cyborg said.
Jimbob... human intelligence IS a byproduct of evolution. It's not separate. Human "intelligence" has become part of the environment that selects, assimilates, and replicates information --information that sticks around to be built upon after the current information processors are long gone. You speak of intelligence like it's something outside the system--
It's as if you are saying that flies would not have evolved web defending mechanisms had spiders not evolved web building. True, but so what. Spiders DID evolve web building. And Humans did evolve "intelligence". Human intelligence is an environmental influence that hones information as "naturally" as spider webs. Evolving systems serve as environmental inputs for each other. All evolving systems--from life forms to everything else are maximizing information storage, recombination, replication, and "tweaking" of information... what we observe is increasing complexity and seeming design and a sense of an emerging picture... in life forms, ecosystems, languages, technology, cultures, etc.
You see differences that aren't there and seem to miss the continuum entirely --along with the very basic understanding of what biological evolution actually is-- and why it's strikingly analogous to technological evolution when you understand what it means to be a code or bit of information that ensures it's own replication by properties inherent in it.
What happened with the mice is, in essence, a lateral gene transfer-- and it has happened in evolution plenty of times with no human input whatsoever. Lots of seemingly miraculous things will happen with evolution-- just like lots of people will get very rich so long as there are lots of lotteries. You are looking at the lottery winners after the fact and concluding that there is something amazing about a certain person in particular having won. It would be amazing if it was predicted before the fact. But after the fact it is not. The fact that humans evolved and used their "intelligence" to insert a glowing gene in a mouse... is not amazing after the fact. It's not amazing that a human might wonder if nature could manage this feat without humans. But neither the feat itself nor your imaginations about "what if" are relevant. Humans find meaning in processed information of various sorts-- even design and patterns. They evolved to do so. They also evolved to think of human intelligence as something special and wondrous and "outside nature". They evolved to "notice the hits"-- and it's very easy to do because when it comes to evolution-- the misses disappear... they don't code for anything... all we see are the systems composed of information that was selected again and again over time that drove the evolution of other systems that shared it's environment over time. It seems to fit together "amazingly well". But that's because natural selection builds miraculous things.