[bill1952]

I didn't know that natural selection was ever in doubt.

[Paladin2]

How do you explain TROP?

[muawiyah]

What we have here is yet another rhetorical device designed to demonstrate a scientific truth for which there is no reliable bench test.

Best I can figure it, these guys are into "just say it's so" mode. In fact, the talk about underlying mechanism suggests they are not too sold on the idea that DNA exists.

This is the sort of logic that is used to argue that there are thousands of species of salmon.

[phantomworker]

I didn't know that natural selection was ever in doubt.

Same here.

[This study, however] provides empirical support for the proposition that natural selection is a general force behind the formation of new species by analyzing the relationship between natural selection and the ability to interbreed...

The study provides more empirical support.