Evolution doesn't seek out advantages, it just happens statistically that changes which carry advantages have more probability of rising to fixation within a sp

Evolution doesn't seek out advantages, it just happens statistically that changes which carry advantages have more probability of rising to fixation within a species. Plus as ptpu touched on (and I'd wager he's more knowledgeable than I am) it's probably hard to even get the necessary mutations let alone having them stick around, or the species lasting long enough, etc.