077Mating Songs of Frogs讲解

076Mass Production Method and Impact讲解

075Live Performance讲解

074Stone Tools and Pottery Fragments讲解

073Language as a Historical Source讲解

072Iron Working in Africa讲解

071Individual Performance and the Presence of Others讲解

070Impacts and Mass Extinctions讲解

069Imitation in Monkeys and Apes讲解

068Hunting and the Settling of Inner Eurasia讲解