[shuckmaster]

If a species is evolving because of environmental changes, the would natural selection just be a weeding out of the weaker part of the gene pool?

Only in the sense that a weakness relates to the particular enviromental pressure.

[Bigh4u2]

"Only in the sense that a weakness relates to the particular enviromental pressure."

So the stronger ones would survive and weaker ones would die out?

And that would be the explanation of 'natural selection'?

I'm sorry if I'm asking what may seem to be dumb questions, but I usually can rationalize things better if I just repeat what I'm thinking.

Something to do with what my wife calls 'driving me nuts' syndrome!