030Debate About the Earliest Calendar讲解

107The Brain Size of Bottlenose Dolphins讲解

099Seashell Artifacts讲解

078Mesopotamian and Egyptian Settlement Patterns讲解

057Gondwana讲解

085Origins of the Megaliths讲解

088Pleistocene Climate讲解

068Hunting and the Settling of Inner Eurasia讲解

092Portraits as Art讲解

028Costs of Quitting a Job讲解