Physiologically, the human body is no more sophisticated than that of a dog or a cat. Organs, processing, etc.
Our minds are different than any other species however. We have the ability to imagine or visualize things that don't exist, and then we also have the power to create what we visualize. That is what makes humans special.
Of course, humans have their weaknesses as well.
Despite our higher intelligence, we don't know everything. I make the analogy of a dog riding in a car. He enjoys going for a ride, but he has no idea about an internal combusion engine.