In this month's Cell Podcast, we learn how to tune the intestinal immune system with microbial cocktails, with Dan Littman (0:00) (Sczesnak et al.), why there's more to DNA methylation than CpG islands in the hematopoietic system, with Greg Hannon (9:35) (Hodges et al.), where modern humans interbred with their ancient hominin cousins on the journey out of Africa, with Mark Stoneking (15:51) (Reich et al.), and whether humans are better team players than chimpanzees, with Daniel Haun (21:15) (Rekers et al.).
