Tesar, Jenny E

Explores the role of temperate and tropical forests in the Earth's ecosystems, and discusses the threat posed to forest resources by pollution, development, and lack of careful conservation.

Discusses the gradual warming of the planet, its possible causes and effects, and some solutions.

Examines the various types of Earth's habitats, the complex relationships of plants and animals found in them, and how man's activities can upset or destroy fragile ecological balances.

Identifies physical characteristics, lifestyle, habitat, reproductive process, and methods of survival of this bird as well as environmental issues relating to it.

Looks at the natural world by examining the aspects of life that connect all living things to one another.

Describes ten naturally occurring curiosities in the United States, including Acoustic Sand Mountain, Austin's bat colony, bristlecone pine trees, the flaming fountain in Pierre, South Dakota, and the Thurston lava tubes.

Explores ten unique rivers in the United States, including the Mississippi, Yukon, and Rio Grande.

Presents information and statistics about the ten most populated cities in the United States: New York, Los Angeles, Chicago, Houston, Philadelphia, San Diego, Phoenix, Dallas, San Antonio, and Detroit.

Discusses ten of America's most unique mountains: Grand Teton, Magazine Mountain, Mauna Kea, Mount Elbert, Mount McKinley, Mount Mitchell, Mount Rainier, Mount Saint Elias, Mount Washington, and Mount Whitney.

Examines the physical structure, metabolism, and life cycle of mammals and discusses how they fit into the food chain.