ETHICS - Eugenics - Should we do it ?

What is Eugenics ?

EUGENICS: the science that deals with the improvement of races and breeds, especially the human race, through the control of hereditary factors. From Webster's New Universal Unabridged Dictionary

Probably we have all heard of the idea that large-sized parents gives large sized babies .... mentally-ill parents will give mentally-ill child . . .. so on and so on .

Men has always been keen observers . They observe nature and learn from it . It was a known fact in animal kingdom that selective breeding ensures successful survival of species .

Take the LION for instance. The LION has a harem of LIONESS, who produces his offspring season after season. There will be season that comes, where a young, LION will try to wrest the harem from the current KING - the present LION. A battle ensues. THe victor almost always would be the experiened older KING . But come a day, a young galant LION comes along and defeats the old KING. THe old KING is driven out, his HAREM wrestled into the paws of the young , new KING . THe new KING will almost always not tolerate the offspring of the old KING. They will be mauled and killed . The LIONESS will and not likely to interfere . The offspring of the older KING , if older , will strike out on their own to seek their own group .
The young LION will mate with the current harem of LIONESS , which strangely but biologically explainable , instantly becomes fertile . THe cycle goes on and on , and on. Such nature driven selective breeding leds to the demise of the old KINS , but ensure his descendents will most likely be superior LIONS , KING-like in character .

SHould humans copy the same ? Even before WWII , there were already scientific communities experimenting with Eugenics .

Now we have genome projects, genetic manipulation of and selection of sex of babies , genetic modified animals, foods for instance .

HUmans will forever be evaluating ways to better their lives - for what ? THe benefit and continued existance of humans till end of time . Many of the other species in the world has perished , but humans were able to continue its existence . A combination of genetic and social engineering mix was continually update as time goes by

Is it right ? Is it ethical ? Is it due to sMAn's urvival instinct ? Or was there some ulterior motive ? Is there such a thing as perfect MAN ? Where is the limit ? Who dictates it ?