Comment Re:why do stable chances increase the likelyhood? (Score 1) 575
You misunderstand natural selection. Reproductive rates drive natural selection, not the environment per se: i.e., members of a species produce more offspring than can survive (in the local environment, which, it is important to remember, includes other species filling ecological niches that "crowd" the species under investigation). It doesn't matter what the environment is if species produce too few descendants.