Evolution's Double-Edged Sword

This is a specific case that illustrates a problem I've long had with the theory of evolution. Assuming there ever was such a thing as a positive mutation (even assuming this was the result of the introduction of new information in the genetic code--which I think unlikely) natural selection would tilt toward the species who specialize and kill of their more generalized competition. But then, at the same time, this would make them less adaptable to changes in their environment--ultimately killing off the specialists after the generalist species were gone.

In other words it's an entirely reductionistic theory that cannot account for the increase of anything except entropy.Discovery Channel :: News :: Study: Big Predators Don't Last Long