Quote:
Originally Posted by Neapolitan
If plants and animals evolve in response to the changes in the biosphere; like a change in climate, maybe an introduction or disappearance of flora and fauna that would totally alter their way of life, thus creating a change of their position in the food change or eating habits, like evolving to elude beig eaten, or evolve to be harder, better, faster, stronger plant and/or animal etc. So if plants and animals evolve because they have to adapt, human don't have to the changing world around them humans can alter the habitat they live and create tools, instead of adapting on the genetic level like plants and animals, so why would they have to evolve - it would be a mute point.
Cheetas are lean mean hunting machines, they evolve to run fast, and take out their prey, on the other hand human don't have to evolve for speed they can just create say a bow and arrow right to hunt and kill, right? That would deminish the need to evolve into a fast running species or some subspecies of super fast humans who can chase after prey, while the rest of the species would live a more sedentary lifestyle as like being hunter/gathers or into some kind of husbandry.
Some scientist once siad that the human race could not survive as a species if it wasn't for their intellect. He point out that humans aren't the fastest, or the strongest, and without the domiciles they know how to build, and the clothes they know how to make, the human species would not be suitable to live all over the world like they actually do.
So in short it's human's intelligence that stops us as humans from evolving.
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Nice Daft Punk reference.
From my understanding I don't think we are evolving at anywhere near the pace of other animals due to the fact that we change our surroundings to suit us, rather than changing to suit our surroundings.
Natural selection happens as the ones with the more advantageous mutations are more likely to survive and therefore breed, passing their genes on. With humans, there are all kinds of things we've made to make mutations to survive unnecessary; e.g. in other animals, a creature with a genetic condition would likely die before it passes the genes on, so the conditon slowly dies out. In humans, medical care allows people with these conditions to survive and pass their "bad" genes on (I'm not saying we should kill everyone with genetic conditions, don't get me wrong).