This site from University of California has a biography and picture of Antony van Leeuwenhoek, a scientist in the 18th century.

The life and philosophical treatises of Aristotle (384-322 BCE) are surveyed, including his writings on biology, zoology and physics.

This University of California Museum of Paleontology offers a very detailed biography of Carl Von Linne, also known as Carl Linnaeus.

This Berkeley site offers a great overview of when the class appears in the fossil record.

General information on the cyanobacteria, the blue-green algae and the features that make them different from prokaryotic bacteria. Also included are pages that point to more specific info, like life history and fossil records.

Learn all about the forest biome including where located in the world, different kinds, climate, flora and fauna, and soil. Good research site for middle years students.

A comprehensive site that looks at the different types of echinoderms, their life history and anatomy.

UC Berkeley offers good examples of green algae. Definition of green algae, habitat, various types of green algae, fossil record, ecology, and morphology.

This site provides an introduction to bacteria and examines fossil records, life history and ecology, systematics, and morphology.

A brief overview of viruses from the University of California. Discusses the difference between the lysogenic phase and the lytic phase, gives examples of viral diseases, and provides information on the relationship between viruses and mass extinction. Diagrams are also provided.

Berkley offers an introduction to archaebacteria--ancient bacteria--including the history of the topic, scientific findings, and where to find archaeans. Includes images and links.

Nice informational site about the order Carnivora. The opening page lists members of the order and briefly describes relationships between humans and carnivores. It links to pages on evolution of carnivores, the ecological roles of carnivores, classification, and physical characteristics of carnivores.

A wonderful place to learn all about the fungi. click on the buttons at the bottom of the page to go to sections on their life history, systematics and morphology.

Detailed site, lots of pictures, and easy to understand descriptions of the phylum known as Porifera. This one is a winner!

A site from the University of California-Berkeley that details the process by which scorpions have evolved. Includes identifying characteristics of modern-day scorpions.

Evidence from the fossil record is used to support bird evolution from small carnivorous dinosaurs. In the student module, feathers, behavior, and skeletal structure are examined in an interactive lesson designed to impart a complete understanding of fossil bird evolution. In the teacher module, lesson plans, rubrics, assessments and references are clearly outlined.

A brief overview and links to more detailed information about the Miocene Era, as well as an interactive table of the subdivisions of this Epoch.

A good review of the natural history of the extinct species, the Sabertooth. Includes pictures of bones of this animal.