This section will include the animal life of Terrok, including both sentient and unintelligent creatures. For purposes of this work, "creatures" will include crystalline organisms that move, eat and grow as well as undead, common extra-planar beings, and the more mundane organic sort of animals. Most "earthly" animals do exist on Terrok, and may be mentioned in passing, but this work will mainly deal with the sorts of creatures unfamiliar to the reader. 

The bestiary will be divided into the following categories: 

Animals - common animal types such as bears, horses, cats, etc. Only new species will be noted. This will also include magical beasts; creatures that are basically animals but influenced by magic (e.g. pegasi, unicorns, griffons, etc.); and vermin. 

Constructs - creatures which have been made, or assembled and given life by priests, wizards or other magical means.

Dragons (including wyrms, wyverns and drakes) - large winged reptiles, often with breath weapons. These are varied enough and different enough from "normal" reptiles to get their own section.

Humanoids (includes Anthronids, Beings from other planes, Monstrous types, and Semanthronids) 

Horrors - creatures that are wrong and just shouldn't be. Includes Undead.

Planars - Entities from other dimensions or planes of existence. (e.g. elementals)