Biology  5/e   Raven/Johnson
	Student   Online Learning Center

Meet the Invertebrates

The University of California Museum of Paleontology maintains a network of sites that present a wealth of information on animal groups. The above address is for porifera (sponges). Others include cnidaria, platyhelminthes (flatworms), annelida, molluska, echinodermata, and arthropoda.

A Tragic Film from the Microscopic World

The story of birth, life, and death of a female rotifer and her offspring, illustrated with extraordinary video microscope footage. For a remarkable microscopic video of a live Rotifer birth, check out as well http://micscape.simplenet.com/avis/walker1.htm.

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