Encyclopedias, Almanacs, Transcripts, and Maps
- Burmese Religion
- Burnett, Frances
- Burnouf, Eugène
- Burra, Edward John
- Burroughs, John (1837 – 1921) American Naturalist and Writer
- Busby, Sir Matt
- Bush Meat/Market
- Bushbabies (Galagidae)
- bushbaby
- Bustards (Otididae)
- Buttonquails (Turnicidae)
- Buxtehude, Diderik
- Bycatch
- Bycatch Reduction Devices
- C:N Ratio
- Cabasilas, Nicholas
- cabbage white butterfly
- Caenogastropoda (Caenogastropods)
- Cain and Abel
- Caitanya