Introduces rolypolies, also known as pill or sow bugs, which are a member of a special group of animals called isopods. Includes various activities and experiments.
Provides information about the physical characteristics of pill bugs, sow bugs, and other crustaceans, looking at how they develop and where they live; and features instructions for activities based on the care and observation of wood lice and brine shrimp.
Looks at the different types of crabs and crustaceans, providing information about their appearance, hiding places, claws, eating habits, senses, and life cycles.
Defines crustaceans, such as slaters and freshwater crayfishes, and describes their physical characteristics, life cycles, habitats, senses, food and means of self-defense.