Gotta disagree with the darwin thing!
It's not survival of the fittest anymore, it should be Survival of the most adaptive. with the world constantly changing, if a species doesn't adapt it, doesnt matter how fit they are, sooner or later something will adapt and eat it! :-) just my thoughts on the matter.
Survival of the fittest really means "more adaptive will survive". Don't confuse the term with being "physically fit".
From Wikipedia for the lazy: Darwin meant it as a metaphor for "better designed for an immediate, local environment", not the common inference of "in the best physical shape".