This site, from the University of Michigan's Museum of Zoology, provides a variety of short information entries about periodical cicadas including photos, and song clips. Information about cicada life cycles, broods and...

This reference page offers a brief description of Tardigrades, also known as water bears. It includes information about their physical appearance, an explanation of their name, likely habitats, internal organs and other...

This online lesson plan was designed for students taking part in the active research project to document the distribution of a new species of tardigrade, a microscopic invertebrate animal. The project is part of a...

This Web companion to the Public Broadcasting Service (PBS) television series features essays, video clips, and special interactive features that explore the story of life on Earth. Additional features include an...

From the University of California-Berkeley, this website provides access to images and data in the institution's Museum of Vertebrate Zoology collections. Refreshed weekly, the data records are available to individual...