Eating sustains life. However, our tongues also enable us to taste foods, so we eat the foods we like; and our cultures assign values to foods, so we often eat as part of a ritual. In this episode, series host and naturalist Diane Ackerman explores the biology and the rituals of taste around the world. In France, a master chef divulges his secrets; in Mexico, a family prepares a meal for the Day of the Dead; in a Japanese restaurant, Ackerman looks into why some people consider potentially poisonous fish to be a delicacy; and in Connecticut, a scientist maps our taste buds.