Where did we come from? One of humanity's most basic questions, the answer is fascinating. Weaving together insights from the fields of genetics, archaeology, linguistics, and paleoanthropology, hosts Spencer Wells and Razib Khan take us on a grand tour of human history. Scientific storytelling at its best.
http://insitome.libsyn.com/website
episode 27: Ghost in the machine
Spencer and Razib talk about what we mean when we say "ghost population" in human genetics, and why it's so important to understand our origins.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2842210/
https://www.genetics.org/content/192/3/1065.short