A collection of three pathfinders previously published in 2000. "Birds" explores various aspects of the world of birds, including their physical structure, habitats, and behavior. "Sharks and other sea creatures" presents information about sharks and other marine animals. "Whales, dolphins, and porpoises explores the history, physical charactertistics and behaviors of whales, dolphins and porpoises.
A collection of three pathfinders previously published in 2000. "Birds" explores various aspects of the world of birds, including their physical structure, habitats, and behavior. "Sharks and other sea creatures" presents information about sharks and other marine animals. "Whales, dolphins, and porpoises explores the history, physical charactertistics and behaviors of whales, dolphins and porpoises.