Encyclopedias, Almanacs, Transcripts, and Maps
- Pieter van Musschenbroek
- Pietro Angelo Secchi
- Pietro Antonio Cataldi
- Pietro Mengoli
- Pig-Nose Turtle: Carettochelyidae
- Pigeons and Doves
- Pigeons and Doves
- Pigeons and Doves: Columbidae
- Pigeons, Doves, and Dodos: Columbiformes
- Pigs: Suidae
- Pikas, Rabbits, and Hares: Lagomorpha
- Pikas: Ochotonidae
- Pike, James A(lbert) (1913-1969)
- Pikes and Mudminnows: Esociformes
- Pilgrim's Guide to Planet Earth: A New Age Traveler's Handbook & Spiritual Directory
- Pillbugs, Slaters, and Woodlice: Isopoda
- Piltdown Hoax
- Piltdown Hoax
- Pincott, Hugh (1941-)
- Pinecone Fish