Encyclopedias, Almanacs, Transcripts, and Maps
- Biomass Fuel
- Biophilia
- Bioregional Project
- Biosequence
- Biotic Community
- Biotoxins
- Bioventing
- Birch Mice, Jumping Mice, and Jerboas (Dipodidae)
- bird of prey
- BirdLife International
- Birds and Humans
- Birds of Paradise (Paradisaeidae)
- Birmingham Six
- Bīrūnī, al-
- Bisṭāmī, Abū
- Bivalvia (Bivalves)
- Black Elk
- Black Lung Disease
- Black Theology
- Black-Footed Ferret