I've been studying and debating evolution and Dawinism for decades and in that time it's been my observation that most people, scientists and laymen, tend to believe that evolutionary advance occurs when environmental niches "select" which organisms survive versus which don't.
In my humble opinion, when Professor Lewontin speaks of, "the picture of evolution that postulates an autonomous external world of `niches’ into which organisms must fit by adaptation," he's speaking of a picture that can be accurately painted with a pretty wide brush.
I'm not trying to be argumentative about this. It's just that the most important part of the argument I want to posit revolves around a corrected understanding of the relationship between an "environment" versus the organisms that live in it.
Professor Richard Lewontin seems to imply, and I would concur, that the environment is at least as much in the organism's genes as the organism is in the environment.
John
It is hard to fathom that you have studied for decades
and didn't even learn that a theory cannot be proven true.
How is that even possible?
I don't think you get it now either.
And you are confused about what is said re niches.
It is simple common sense. IF an organism is better suited to EXISTING CONDITIONS than
another, THAT ONE organism lives to reproduce. It cannot prepare its habitat in advance.
Its genetics may spread, and said offspring may then begin to modify the environment in a feedback loop.
I'm sorry but, decades of study, and you think it is ' evolution and dsreinism'?
And you have not learned the most basic things?
I can try to help you but you have to make an effort, instead you are trying not to learn.