Green_Manelishi
Contributor
Doc Intrepid:It does not work that way with with Darwinism, per se, because the samples are not randomly selected.
Giraffes, for example. 'Survival of the fittest' would suggest that a long neck is advantageous in times of drought, because when lower shoots and leaves have all been eaten the animals with longer necks can still reach higher forage that animals with short necks cannot. Ergo, over time longer-necked animals will survive longer, hence breed more frequently over time with other longer-necked animals, hence over time neck length will tend to increase for this animal.
Thus evolution would tend to be driven by environmental parameters and breeding for desirable traits, and not random chance.
Your example although valid is that of adaption within a species. It is not an example, nor can it be logically assumed to lead to, a completely different life form; like dinosaurs evolving into birds, etc. Thus does evolution fail assuming it even surmounted the obstacle of life from lifelessness.