Contents Effects of the Commercial Revolution ..........................................................................................................................................................................................................5 Colonial America and the Navigation Acts ...................................................................................................................................................................................................6 Mass Production: Method and Impact ...........................................................................................................................................................................................................7 Alaska and Bark Beetles ...............................................................................................................................................................................................................................8 Earthquake Prediction ...................................................................................................................................................................................................................................9 Soil Fertilization .........................................................................................................................................................................................................................................10 Early Modern Industrialization ...................................................................................................................................................................................................................11 Cereals and Legumes: A Partnership ..........................................................................................................................................................................................................12 Evolution of the Flowering Plants ...............................................................................................................................................................................................................13 Pest Control ................................................................................................................................................................................................................................................14 How Animals in Rain Forests Make Themselves Heard .............................................................................................................................................................................15 The Extinction of the Dinosaurs ..................................................................................................................................................................................................................16 Agriculture in the Late Ottoman Empire .....................................................................................................................................................................................................17 Comets ........................................................................................................................................................................................................................................................18 Mexican Mural Art .....................................................................................................................................................................................................................................19 Temperature Regulation in Marine Organisms ...........................................................................................................................................................................................20 The Identification of the Genetic Material ..................................................................................................................................................................................................21 Mesolithic Complexity in Scandinavia .......................................................................................................................................................................................................22 Forest Succession ........................................................................................................................................................................................................................................23 The Cambrian Explosion ............................................................................................................................................................................................................................24 Tree Species Identification in Tropical Rain Forests ...................................................................................................................................................................................25 Models of Egg Development ......................................................................................................................................................................................................................26 Elements of Life..........................................................................................................................................................................................................................................27 Preventing Overgrowth among Tree Branches ............................................................................................................................................................................................28 Grassland Environment ...............................................................................................................................................................................................................................29 Population Revolution in Eighteenth-Century Europe ................................................................................................................................................................................30 The Western Roman Empire in the Fifth Century .......................................................................................................................................................................................31 Motor Development in Children .................................................................................................................................................................................................................32 The Plow and the Horse in Medieval Europe ..............................................................................................................................................................................................33 Art and Culture of Pacific Northwest Communities ....................................................................................................................................................................................34 Architectural Change in Eighth-Century Japan ...........................................................................................................................................................................................35 Coral Reef Communities .............................................................................................................................................................................................................................36 How Birds Acquire Their Songs .................................................................................................................................................................................................................37 Isolation and diversification in the Tropical ................................................................................................................................................................................................38 Why did Nonavian dinosaurs become extinct? ...........................................................................................................................................................................................39 Origin of the Solar System ..........................................................................................................................................................................................................................40 Pleistocene Extinctions ...............................................................................................................................................................................................................................41 Earth’s Atmosphere ....................................................................................................................................................................................................................................42 Currency and the Emergence of China’s Market Economy.........................................................................................................................................................................43 Greek Sacred Groves and Parks ..................................................................................................................................................................................................................45