Biology Online is the home for everyone who is interested in studying and becoming more familiar with Biology, whether you are a Student, Educator, Scientist, Life Science professional, or anyone else who shares a passion for Biology. Created in 2001, the site is the world’s most comprehensive database of Biology terms, tutorials, and articles with over 33 million visitors using the site on an annual basis.

The site aims to educate and promote awareness of all things regarding Biology, offering free and easy access to foundational information in the Biological Sciences.

Our Advisory Board of Scientists & Biology Educators helps steer the editorial direction of the site, and to help insure that we provide you Biology related content that is up-to-date, readable, verified, and useful. The site would also not be as robust without our Partners who collaborate with us financially and/or editorially to bring you the breadth and depth of Biology related content on the site.

The site is critically acclaimed for its simplicity, in both its design and the way in which it delivers content, helping users to find information easily, quickly and as a result more effectively. All of the sites 75,000+ Biology terms and tutorials have been produced by our editorial staff of trained biologists to adhere to our Editorial Guidelines, and were vetted and refined by the 285,000 members of our community. 

As members of the scientific community, we invite and appreciate all feedback related to the information presented on this site. Please Contact Us with any comments/suggestions, or ideas for partnership.