| dsgrue3 said:
Evolutionary changes are absolutely driven. You are clueless. Here's a very short document explaining why no one takes you seriously. And a more in-depth document concerning speciation (I think this will rebut any future questions of inbreeding/cross-breeding): http://www.globalchange.umich.edu/globalchange1/current/lectures/speciation/speciation.html PS: You ignored my previous post to you. |
You are a man with an agenda. Nothing in my post explaining my understanding of evolution (and its driven/not driven nature) was counter-argued in the document you posted (the first one). If you can't show that I am clueless, better not say that unless you want me to demolish your arguments once again.
And lol at cross-breeding not mattering. From your second link:
"This concept became criticized by biologists because it was arbitrary. Many examples were found in which individuals of two populations were very hard to tell apart but would not mate with one another, suggesting that they were in fact different species."
Wow, using the incompatibility of breeding between two individuals SUGGESTS that they were in fact different species. In your own article. Now look who's clueless. Yep, it's you.
Oh my tamil tart, okay this is priceless:
'Biological species concept: This concept states that "a species is a group of actually or potentially interbreeding individuals who are reproductively isolated from other such groups." '
IN YOUR OWN SOURCE.
The source then mentions two types of limits to cross-breeding: pre-zygotic isolating mechanisms and post-zygotic isolating mechanisms. Nothing in the section in speciation mentions the intricacies of an evolution and if or when it leads to these isolating mechanisms and thus, speciation ('Given time and selection, the two populations become two species. They may, at some later time, spread back into contact. Then we can ask, are these two "good biological species"? '). We are just blindingly assuming that this is not a problem and that from one evolution to another there is no isolating mechanism such that two individuals would need to have the exact same mutation for the speciation to persist. Talk about a constraint.
Imho this could only work over a long time and even so a bridge theory whereby individuals of evolutionary stage B can mate with A and C yet C cannot mate with A is a pretty odd concept to be completely honest, and quite far-fetched.
