Encyclopedias, Almanacs, Transcripts, and Maps
- Werbach, Adam (1972 – ) American Environmentalist
- Wesley Brothers
- West African Religions
- West Indian Sloths and Two-Toed Tree Sloths (Megalonychidae)
- Wet Scrubber
- Wetlands
- Wetlands
- Whale Strandings
- Wharton, Edith Newbold
- What Are Lower Metazoans and Lesser Deuterostomes?
- What Is a Bird?
- What Is a Fish?
- What Is a Mammal?
- What Is a Protostome?
- What Is a Reptile?
- What Is an Amphibian?
- What Is an Insect?
- Wheatley, Paul
- whinchat
- Whiptail Lizards, Tegus, and Relatives (Teiidae)