Incorporating the new terms and research compiled in the last few years in this field, The Facts On File Dictionary of Biology, Fourth Edition clearly defines the basic principles and terms used in this widely studied branch of science. Approximately 300 new entries have been added to reflect new information, and current entries and back matter have been revised as needed. Pronunciation symbols have been added, and many line illustrations have been replaced. Pairing rich content with an accessible format, this science dictionary is ideal for high school, tafe, and university classrooms and libraries, and will be useful to specialists and laypeople alike.

New entries include:
Beta-oxidation
Cerebral nuclei
DNA fingerprinting
Gene family
Incubation
Neutral evolution
Paraphyletic
Rapid eye movement
Sexual selection
Vital capacity