"Interesting that humans would be able to leave Africa roughly fifty thousand years before they came to exist. Which molecular anthropologists are you talking with? Source, please."
Gaps in the genaeologies of Genesis, and ambiguities in the Hebrew language leave many doubts as to the accuracy of the timekeeping in Genesis.
I don't doubt that we are God's final creation, and I don't doubt that we are a recent arival on planet earth, but I don't dogmatically hold to the timekeeping of Genesis when the language is so inaccurate.
Here is a short bibliography:
(Noah A Rosenberg et al., "Genetic Structure of Human Populations", Science 298 (2002) 2381-2385)
(Mary Clair King and Arno G Motulsky, "Mapping Human History", Science 298 (2002) 2342 - 2343)
(Nila Patil et al., "Blocks of Limited Halotypoe Diversity Revealed by High Resolution Scanning of Human Chromosome 21", Science 294 (2001) 1719 - 1723)
(Elizabeth Pennesi, "Tracking the Sexes by Their Genes", Science 291 (2001) 1733 - 1734)
(Carl Zimmer, "After You Eve", Natural History, March 2001, 32-35)
If you need more, I will be happy to provide them.