Animal Instincts

There are many behaviors in humans that are similar to behaviors in other animals. Looking at mating rituals and posturing, I can see similarities between humans and many other species. There are also many behaviors that are similar in aggression (although humans seem to be alone in war). This would seem to support the evolutionary theory. I ruminated about this in my blog about similarities in anatomy between species. A being that is creative enough to make the incredible variety of the universe would be creative enough to make different behavioral patterns in different species. I'm starting to think that the creation of life on earth follows a similar path to manufacturing. A product is made. The R and D people look at it, adjust it, improve on it, try it out, create a prototype, and release it to the public if it is successful. The new model often has many of the same systems and features of the old. It is rare to have a completely new product introduced. If this is the creative process of life, it would be contrary to the one, all powerful God doctrine. It would seem to point more to an experimenting being. A group of powerful and creative beings would even fit this model. I know this is a bit radical and a step back toward ancient religions but I'm just trying to keep an open mind and consider all possibilities without being swayed by popular opinion. A multi-creator model could explain the different levels of creativity and power between events like the creation of the universe and the adjustments in the organization of a particular species. What are the arguments against a multi-creator universe?