Learn about what polar animals eat and where each belongs in the food chain.

Learn about what desert animals eat and where each belongs in the food chain.

The author, a computer science professor diagnosed with terminal cancer, explores his life, the lessons that he has learned, how he has worked to achieve his childhood dreams, and the effect of his diagnosis on him and his family.

Shows some of the food chains that exist in the polar regions--from plant to plant-eater to various levels of predator to the top of the food chain--and how they combine into a food web.

An encyclopedia designed especially to meet the needs of elementary, junior high, and senior high school students.