Two Empires or Three?
United States

Argues for maintaining the Eukaryote and prokaryote Empires over the Tree Domains classification system.

United States

The basics on cell organization and division presented by the National Center for Biotechnology Information. Microbiology

A site containing monthly articles on microbiology topics without all the scientific jargon. Many links to sites with good content ...


Forum for dissemination of advances and current research among Asian countries. Includes online registration and abstract submission form, accommodation information. ...

Deep Time
United States

PBS Evolution offers an interactive timeline to help readers better understand geologic time and evolutionary change.