Evidence for God from Science

2 Possibilities here. 1) Adam and Eve where part of a first group of humans and were chosen as representatives of the human race - so there were other humans around as well. 2) Due to their long lifespans - Adam and Eve had many other children not really recorded in the Bible so Cain and Abel essen...

If Adam and Eve where the first humans God Created, and they had 2 sons, Cain and Abel, then where did Cain and Abel's Wife's come from? Was there other humans on the earth when God created Adam and Eve?