Biology

Resources for Molecular and cell biologists.

An online interactive resource for learning biology.

Reproductive Physiology Animations is a collection of learning modules on human reproduction from the University of Cincinnati College of Medicine. The modules have animation, and some have sound. This collection is open to the public.

Science.gov searches over 60 databases and over 2200 selected websites from 15 federal agencies, offering 200 million pages of authoritative U.S. government science information including research and development results.

Species 2000 is an autonomous federation of taxonomic database custodians, involving taxonomists throughout the world. Our goal is to collate a uniform and validated index to the world's known species (plants, animals, fungi and microbes).

The Tree of Life Web Project (ToL) is a collaborative effort of biologists and nature enthusiasts from around the world. On more than 10,000 World Wide Web pages, the project provides information about biodiversity, the characteristics of different groups of organisms, and their evolutionary history (phylogeny).

Some content requires payment.