Stanford University
Sea Urchin Images
Free, downloadable images on a variety of topics related to urchin development, anatomy and physiology. Useful for teaching, worksheets and reports.
PBS
Pbs Teachers:kamchatka: Land of Abundant Salmon
Identify the three main groups of fishes and identify external and internal bony fish anatomy and physiology. Examine the Kamchatka ecosystem and the role of salmon in the food web, and describe the salmon spawning cycle.