According to the scriptures, different "races" were created when people tried to build the tower of Babel. It is said that God "twisted" their tongues so that they could not understand each other; so different "languages" were created. The "builders" then dispersed throughout the world, and ... voila.. different races for different environments....

And in case u were trying to incite some kind of "paradox", it would be a good question for you "theologists" too.. like, did they have black monkeys, chinese monkeys, latin monkeys etc from which men were SAID to be derived from?? You can ask the same question there: Where did we get the different races from?