(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.
The same is true of sharks and crocodiles, where the basic form is so effective against the pressures on the organism that it doesn't change much, barring basic functionality and cosmetic changes, because within its ecosystem there's nothing funneling the population down a specific path. Evolutionary stasis is apparently another thing that our theist chewtoy doesn't understand and apparently hasn't heard of before he decided he disagrees with it.
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?
"YOU take the hard look in the mirror. You are everything that is wrong with this world. The only thing important to you, is you." - ronedee
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Want to see more of my writing? Check out my (safe for work!) site, Unprotected Sects!