[Ethan Clive Osgoode]

Koreans do not look like Somalians because their ancestors have been separated for tens or perhaps hundreds of thousands of years... If the isolation continues for millions of years, new species could develop

So, in your view, Koreans and Somalians are slowly turning into different species. What is the evidence for this odd assertion?

[Pharmboy]

First, I merely used Somalians and Koreans as examples of people who do not look alike; let's change it to Norwegians and Bangladeshis, for arguments' sake.

Secondly, I did NOT say that Koreans and Somalians were becoming separate species; what I said is that races (or as non-human races are defined, sub-species) if separated from each other for a long, long time--millions of years--can change enough genetically from each other to become separate species. So, Norwegians and Bangladeshis, if kept separate for millions of years, could wind up after that time as different enough from each other to constitute different species.

Please click here for a better and more complete explanation of speciation along with concrete examples.