Database of research protocols in a variety of life science fields. Contains protocols contributed by worldwide researchers as well as links to protocols on the Web from research labs, biotech companies, and personal Web sites.
Database of verified butterfly and moth records in the United States and Mexico. Includes distribution maps, photographs, species accounts, and species checklists for each county in the U.S. and each state in Mexico.
Collection of images, movies, illustrations and animations in development biology, histology and pathology, immunology, microbiology and parasitology, molecular and cellular biology, neuroscience, plant biology.
This is the largest online encyclopedia, virtual dynamic library equivalent to about 600 volumes. It is an integrated compendium of 21 component encyclopedias.