This online encyclopedia is restricted to ACC students and staff. If you're off campus, you will use your ACC eID to access. An excellent authoritative source for all areas of biology.
Articles about biochemistry and physiology, developmental biology, ecology, evolution, genetics, microbiology and plant science.
Nicely done site on human evolution from several perspectives. The main portions of this are an "interactive documentary" and a timeline. From the Institute of Human Origins.
A highly visual explanation of life's origins. Start with the Timeline, where you can select the time you want to explore. There are separate sections on the development of cells and RNA. From the Museum of Science in Boston.