@Fil Albuquerque,
Fil, consider the crocodile. It is virtually unchanged from how the creature was in the time of the dinosaurs. That is because the biological configuration we classify as crocodile has proven extremely resilient, and the creature has a high survivability. So it has survived to our day and age, but it hasn't really evolved much. Because it's success has made it so there has been no need to.
Now, if that species had "failed", it would have been forced to change in order to survive, and so it would have perhaps evolved to some "higher" form of life.
(This comparison may not be entirely accurate in terms of biology and the facts we have, but it illustrates my point well enough. If you can let go of absolutes and truly appreciate the dynamic nature of.. well, nature... you might end up with a perspective that lets you see deeper. I know that was the case for me, at least.)