113The Cosmological Principle讲解

112The Collapse of the Maya讲解

111The Climate of Japan讲解

110The Classic Mayan Collapse讲解

109The Chaco Phenomenon讲解

108The Cambrian Explosion讲解

107The Brain Size of Bottlenose Dolphins讲解

106Temperature Regulation in Marine Organisms讲解

105Sumerian Contributions讲解

104Southwest Agriculture讲解