BONUS: Ostrich Eggshell Beads Reveal 50,000 Year-Old Social Network Across Africa

BONUS DISCUSSION: Dr. Jennifer Miller and Dr. Yiming Wang, post-doctoral researchers in the Department Of Archeology at The Max Planck Institute for Geoanthropology (Germany), are the guests for "ROI" episode 493. They will discuss: "Ostrich Eggshell Beads Reveal 50,000 Year-Old Social Network Across Africa."