#####Certainly a species will adapt to it's environment, but one species does not turn into, nor evolve into another species. And wasn't there evidence just released that there were several spontaneous eruptions of different species over time?#####
The punctuated equilibria theory popularized by Gould argues that evolution occurs in sudden dramatic bursts rather than over long periods of gradualism. That theory was put forth to try to explain the failure of the fossil record to demonstrate traditional Darwinian evolution.