(March 16, 2016 at 3:47 pm)Esquilax Wrote:Apples and oranges. Species change is dependent on major changes to the DNA through mutation. Given the prevelance of mutation in the human genome, shouldn't we have seen some major changes by now? Like eyes in the back of your head or something?(March 16, 2016 at 2:20 pm)IATIA Wrote: About 0.000444% of the total time earth has been around.
If the climate change does precipitate into a truly inhospitable environment, there will definitely be some observable evolutionary changes.
A period of time, additionally, during which humans have increasingly been the dominant species on the planet, who aren't influenced by environmental factors due to the totality of the way we change our environment. There really aren't any selection pressures capable of motivating large changes in the human species because our environment is largely one we control and bend to our will, rather than having to coexist with in the way that any other animal has to. Even assuming that 200,000 years is some huge span of time on an evolutionary scale, our stasis wouldn't be too surprising; we're an apex species with no selection pressures to prompt us to change.
(March 16, 2016 at 3:47 pm)Esquilax Wrote: Isn't it interesting that, around the time I started pointing out all the ways that this guy severely misunderstands his subject matter, and cannot provide positive evidence for his god, he started ignoring my responses?I've not ignored you at all. I try to answer every post that I can. Those that I don't are usually answered elsewhere, in response to a similar question.
Concerning the 0.000444% figure, this isn't really relevant since most of the explosion of life apparently occurred in the 20 million year Cambrian period - hence the 1% figure that I came up with.