第70篇Imitation in Monkeys and Apes

第69篇Why Water Bugs Practice Paternal Care of Eggs

第68篇Human Impacts on Biogeography

第67篇Aztec Artisans

第66篇Dinosaurs and Parental Care

第65篇Dead Zones in the Sea

64篇Han Dynasty Tomb Sculpture

第63篇Evidence for Continental Drift

第62篇Life in an Estuary

第61篇The Origins of Agriculture