Life origanated at one place in the universe when the universe was just created. Dont ask me how it got there but it did some how. After billions of yrs that life has been spread from planet to planet, galaxy to galaxy. Carried on comets, asteroids and wat not. Thats how life first started on earth via comet. The first single celled ameobas evolved into more complex cells and gradually to plants and fish and after billions of yrs evolution eventually created the "perfect" species... Us (this isnt fact, just theory).
But i look around the animal kingdom and think that no other creature on earth is as smart as humans (u must admit lol). How did we amount to this? Technology, medicine, populated areas. However u could say that other species have the same things, true.
I think our primitive ancestors just kept making the rite moves along the evolution chain. I also think that any species in the world is capable of having wat humans have. If the dinosaurs had not been wiped out raptors would probably have evolved to beings not much different from our selves. They hunted in groups and worked together, they could comunicate with each other, essentialy they were just like primitave man.