Summary: Scientists have thought about burial—the act of interring a dead body—as a distinctly human behavior. So what happened when a group of paleoanthropologists discovered a primitive hominid that may have entombed its dead? And how do people respond when they are unable to find and care for the remains of their loved ones? SAPIENS host Jen Shannon talks to Mercedes Doretti, about the 38,000 people who have disappeared in Mexico since 2006.
