Actually, I would prefer an older human race, but at present can't
substantiate that. I will I think what is about to be able to answer some of
these questions are some of the proposed experimental evolutions in which
different species are altered experimentally to see if one can be turned
into anther. This is currently being tried on monkeyflowers which are
morphologically distinct from each other.
glenn
Foundation, Fall and Flood
http://www.isource.net/~grmorton/dmd.htm