Provides background information on the earthworm. Reviews basic anatomical, behavioral, and reproductive facts. Offers suggestions for procuring, maintaining, and breeding colonies for classroom use. (ML)

Describes the distinctive features of the common snapping turtle. Discusses facts and misconceptions held about the turtle. Provides guidelines for proper care and treatment of a young snapper in a classroom environment. (ML)

Relates information on the characteristics, habitats, and behaviors of praying mantises. Describes the distinctive anatomical features of mantids. Provides suggestions for the care and maintenance of captive mantids. (ML)

Describes methods for studying the direct effect of thyroid hormones on the induction of metamorphic change in amphibians. (CS)

Describes resources for teaching about dinosaurs. These include audiovisual aids (models, posters, jigsaw puzzles, filmstrips, 35mm slides, resource pack, worksheets, templates, tracing sheets, and films/video materials), books (for young and older students), and exhibits. Includes sources for all materials described. (JN)

Summarizes 19 literature sources identifying road-killed vertebrates and frequency of kill by numbers. Examples of how these animals can be incorporated into curricula (integrating biology, society, people, and values) are given, followed by an illustrated example of how a road-killed raccoon's skull demonstrated a human/wildlife interaction prior…

Outlines the objectives, materials, and procedures in performing a student laboratory experiment that demonstrates sodium transport in frog skin. (CS)