dye

a) What do you mean "no change to primate"?  We ARE the change, and we ARE primate.

b) Evolution will continue and is continuing.  As the environment change (including human factors, competition), so will be species that "fit" into it.  All the author need to do is wait for another few million year before concluding.

c) There is no GOAL in evolution.  Human is not the goal.  (Obviously, the fall into evolution misconception again)  In the end, primate just evolve to be DIFFERENT primate, whether they evolve to become homo sapien is not important in evolution.

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Please begin with Evolution 101 again.

dye

回復 4# 抽刀斷水

In strict term, there is no "better" in evolution.  You probably "better adapted".  The question then raise the question of where in the "wild" you are referring to?

With or without education, human is better at co-operation, planning on future.  Walking upright is also advantageous in traveling long distance on grassland.  It is better at spotting food or enemy on grassland.  All of these will work to our advantage in the certain part of the wild, and useless in other part of the wild.

So in another word, we will probably fare terribly in the jungle compare to a gorrila.  However, we will be quite better adapted on grassland.  We will probably fare horrible alone.  However, we will be exceptional if we are in group.

Does that answer your question?
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PS.  If I remember correctly, our brain did get a tiny bit larger after civilisation.  The limiting factor of human brain is birth.  Also, as our diet change, some of us has become more lactose tolerant (we can drink milk as an adult!).  So we HAVE changed!

dye

Where do we begin?

And now we are calling the specie thata create nuclear weapon to capable of destroying the planet acouple of times "wiser"  (I never said a larger brain wiser.  Otherwise, the elephant should be the wiser)  

Evolution has no goal, does not mean it is random.  Snow flakes has no goal, yet it is not random.  Pattern can form due to natural process.  Human is just a particular pattern, like a particular shape of snowflakes.   (Homo sapian is not the only intelligence ever exist on earth, the others has just gone extinct)

We do walk upright and they generally don't.  It is quite advantageous in certain environment.  I never said it is the sole factor that distinguish us from them.  (You never get over the idea that human is just another species, do you?)

There are some environment on earth that has not change much to pressure an evolution.  Obviously, you forget the salamander that HAS changed.

Species change by MUTATION AND SELECTION.  Now you get a lighter skin color?  Evolution built on ancertor, it is not a puff from design.  As long as the species manage to survive, it does not need to be perfect!

Go back to evolution 101 IN UNIVERSITY

http://evolution.berkeley.edu/evolibrary/article/evo_01

dye

When mutation accumulates, the change will be significant.  A fish CAN evolve to be a totally different creature, given enough environment pressure, time, and mutation.  Least you forget, dogs are evolved from wolf.

Evolution is about genes, not individuals.  So no YOU cannot evolve to have an extra pair of limbs.

The side qestion is even if you have an extra pair of limbs, is it worth?  It is survival of the fittest, not the faster, not the strongest, not even most wise.  A lot of successful animals in the world simply survive by reproducing extremely fast.

dye

回復 19# beebeechan

For example,
H. neanderthalensis

dye

回復 18# beebeechan

Not every feature of evolution is make a species better at adapting to the environment.  It only need to be "fit" in the sense that it will transfer to the next generation.  Adapting to the environment is only one of the criteria.  Other criteria, for example
a) Like the tail of peacock, to attract mates!  In fact, it is thoerize the reason human brain get so large is because of this reason.  People with higher mental capability (not exactly wise) is "sexy".

As for the reason why peacock use its tail, it is way of signalling to female about its health, reasourcefulness, etc  Besides tails, birds dance, sing, build nests, too!

b) Junk DNA, copying for the sake of copying.  As long as it do enough harm.  Most of DNA is just, junk.

c) DNA that causes aging, old age disease.  People (in old days) reproduce when they are young!  So anything that has a harmful effect when you are old will have not much evolutionary pressure to be removed!

And you wonder why people's health goes downhill quickly after they pass their reproductive age (like after 30).

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I think talking to you is a waste of time.  Other who are interest can read the page and decide for themselves.