The whole "wolves vs. dogs" thing is the worst analogy they could have used. That implies that a force greater than the super predators DOMESTICATED them to be docile, and cute, and shit. After all of this selective breeding, somehow we get the predator from P1, P2??? Predators that not only had larger body counts (P1, P2) but suffered more physical abuse (P2)...
That is of course taken literally, which I guess isn't what should be done here. What
would have made sense is to say maybe the difference between wolves and coyotes, or foxes. It's ashame, the super preds looks pretty neat, but they did nothing to really warrant their existence as some badass subspecies of predator. There is a predator that had not only a radically different physical appearance, but also an expansively exotic arsenal, and had existed for 20 years prior the the release of predators... I'm talking about predator 2 of course. There's your super predator, one over seven feet tall, able to kill around 30 people during the course of the movie, and survive about a dozen shotgun blasts to the abdomen.
They chose to ignore P2 cause they couldn't top it.
Here's a link to the real differences between wolves and dogs:
http://wolfdog.ws/html/differences.htmlAnd here's a kill count breakdown for P2:
http://www.allouttabubblegum.com/main/?p=4793