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In a question and answer format addresses basic physiology, such as why one has bones, why one needs food, and how the body grows.

Answers questions about extinct animals and animals in danger of becoming extinct, with a focus on reasons for endangerment and conservation efforts.

Questions and answers about various dinosaurs including which dinosaurs fished, did dinosaurs sing or swim, and which was the biggest dinosaur?.

Provides clear and simple answers to over thirty questions children often ask about horses, and includes humorous illustrations.

Answers questions about space such as, "Are stars star-shaped," "Which is the coldest planet," and "What is a black hole.".

Addresses such questions about animals as why camels have humps, how bats see in the dark, and why birds have feathers.

Illustrations and text provide the answers to thirty-three unusual questions about buildings, tunnels, bridges, and machinery.

Provides clear and simple answers to over thirty questions children often ask about trees and other plants, and includes humorous illustrations.

Illustrations and text provide the answers to forty unusual questions about mosquitos, bees, grasshoppers, and other insects and spiders.

Provides clear and simple answers to over thirty questions children often ask about stalactites and other characteristics of caves, and includes humorous illustrations.