Parker, Steve

An introduction to the digestive system, discussing each stage of digestion, the organs which aid in the digestive process, and the assimilation of nutrients into the body's structure.

Describes the invisible world of bacteria, viruses, fungi, yeasts, tiny animals in the soil, and parasites.

Examines through photographs and text the physical characteristics, habitat, and behavior of various reptiles, including lizards, alligators, snakes, and turtles.

Examines through photographs and text the physical characteristics, habitat, and behavior of various frogs, toads, salamanders, and other denizens of the amphibian world.

Photographs and text describe the physical characteristics and habits of such species of insects as butterflies, fleas, beetles, and termites.