I've seen squirrels team with cardinals to drive off blue jays. Intelligence there too.
When intelligence and design are all around us, how the heck does any sensible intelligent person deny its role in creation?
Is the assumed personal value of not having a *cough* Judgemental G-d that high? Or the pride of selfishness -- without a G-d to feel inferior too, why a proud man or woman, proud of intellect or power can have full run of that pride!