One of several problems is that for many of the organisms with a short enough generation time to run an experiment like this (see Lenski's experiments with E. c

One of several problems is that for many of the organisms with a short enough generation time to run an experiment like this (see Lenski's experiments with E. coli: http://en.wikipedia.org/wiki/E._coli_long-term_evolution_experiment http://en.wikipedia.org/wiki/E._coli_long-term_evolution_exp... ) the notion of a "steady state species" in terms of your thinking (Baboon vs. Human vs. Gorilla) is entirely false.