mycorrhiza
Well-Known Member
I've always understood species to be a group with similar traits within a genus that is accepted by multiple people to be a species. As I've said the definition has changed over time to fit the idea of evolution. Fixity of Species - Answers in Genesis. Since there is confusion in species about where micro and macro evolution began and end lets talk about genus. For macro evolution to be proven there would have to be changes in genus not just species. Where is your evidence for that?
It wasn't changed to fit evolution, it was changed because of new evidence. There have been a few reclassifications that came with the ability to map plant and animal genomes.
Just add the ability to produce fertile offspring and you've got the common scientific definition of species, which we have seen being transcended many times. What is your main argument against the scientific definition of species? The link you provided just says that species = genus, which renders the whole modern taxonomic system useless.
As a genus consists of many different species, you will see changes in the species, but not directly in the whole genus, because it's only loosely connected. If we suddenly saw a whole genus change into a completely different genus, that would be evidence against the current understanding of evolution.
Macroevolution deals with transcending species, not genus. Please do not move the goalposts. Also, macro- and microevolution are rarely used as terms by biologists. They deal with the exact same process. There is no evidence for a genetic barrier that allows for microevolution but stops macroevolution. If we're going to discuss science, we should do it on the terms of modern science.