[Truth666]

Second : Well, no, the finches demonstration variation within species and adaptation to environment. Evolution posits a change from one species to another. Despite the change from beak to beak of Darwin's finches, they're still recognizably finches.
No, I believe there's no such thing as "variation within species to adapt to the environment". If there was such a variation, then that would be a proof for evolution.

[Mr. Bird]

No, I believe there's no such thing as "variation within species to adapt to the environment"

OK, silly person. Let's set aside the very real variations within the finch populations. What about the phenotypical variations among homo sapiens, i.e. the variances in melanin content between equatorial populations and their same-species cousins in Europe?

[spunkets]

" No, I believe there's no such thing as "variation within species to adapt to the environment". If there was such a variation, then that would be a proof for evolution. "

The variation within the species is what allows adaption. Consider sickle cell anemia. THe only reason it is prevalent is, because those folks that have it live longer in malarial infested lands.