sir i think u meant mexican

This post was edited by LedZeppelin31493 on Jan 16 2010 08:42pm

this is not an example of evolution. think about nutrition now compared to then... also evolution characteristics can not be found by comparing individuals over 100 years that is such an extremely small time frame for anything to occur.

there are different forms of evolution and a species is always in the struggle of natural selection. evolution these days has differed from the struggle for homeostasis. Some including Richard Dawkins (who all of you should look into if you are interested in this subject) believe we are now in a social evolution. in this state we may be evolving the social contact and intelligence we have to one another instead of physical characteristics.

yes but to the people who says our intelligence is evolving i think thats wrong because intelligence is an environmentally usually an environmentally gained attribute/characteristic (learning at a young age unlocking/stimulating genes for learning for the future vs high physical activity stimulating more growth hormones) and in some cases yes people are born to be intelligent but the chances of people nurturing this and promoting mating with only others who are as intelligent to start a population are slim. intelligence has merely been compacted and pushed down in order to compact more (before you would have to hammer a nail one by one with a flat head hammer, then came the nail gun, then came machines who can assemble things on their own) thus removing the need to learn obsolete intelligence. i dont believe we are 'evolving' our intelligence but rather climbing a ladder to more simple and easier means of getting things done.

first, how do you explain the increase in brain size over the past 10k years? as tanner said, comparing individuals over 100 years on a human with avg life span of 40 is invalid.

secondly, you claim that "mating between smart people" has a small chance, but evolution is about selecting within the small chances; and comparing to the evolution of any other complicated organs we have that involve multiple attributes, where selection is acting on multiple dimensions, selection on intelligence is acting on only one attribute, the chance is higher to a degree.

thirdly, no offence, but i think your claim that "intelligence has merely been compacted" is a disgrace to humanity.

This post was edited by hk_nobody on Jan 17 2010 03:37am

evolution will never cease to exist... maybe just a bit slower

Then u must have +20 kids..

this

We expand genetic variety by having so much technology to support people with handicaps.

(implying that these people have children too)

Look up savants, some of them can remember trivial things that happened 50 years ago with photographic memory. Theres some that can do more calculations and algrirythms then your calculator. I saw one guy who could paint an almost picture perfect city landscape just after seeing it from a Helicopter, all from memory.. and his drawing techniques are more like a scanner then anything else. I'm pretty sure most of them are autistic, though. The human brain has a lot of potential, even if we're not using it all right now. We have to be evolving somehow, or else the whole theory of evolution is wrong. If your not evolving, then you're already extinct.

you are right, de-evolution does not exist. adaptation arises from natural selection of forms best suited to the environment. our society is becoming less and less dependant on manual labor and are becoming very accostomed to convenience. though any time a species' biology changes it is considered evolution, this doesnt necessarily mean it is a good thing. ever seen idiocracy?