In this episode of Genetics Unzipped, Dr Kat Arney is looking at the monkey in the mirror, investigating how flipped genetic switches and long-dead viruses make all the difference between our human faces and those of our closest primate relatives.Full show notes, transcript, music credits and references online at GeneticsUnzipped.com Follow us on Twitter @GeneticsUnzipThis episode of Genetics Unzipped was written and presented by Kat Arney with audio production by Sally Le Page.This podcast is produced by First Create the Media for the Genetics Society - one of the oldest learned societies in the world dedicated to supporting and promoting the research, teaching and application of genetics.