For every animal species, there is a single ruler or lord, looked upon by those animals as a minor deity of sorts. The animal lord is the master of that species; for example, there is a fox lord, mouse lord, and a cat lord. Each animal can assume two forms: human and animal. Its animal form is always of a member of the species it represents.
Animal lords are seen as protectors of nature and animals. They may step in and prevent hunters from destroying a race of animals or foresters from completely decimating a forest. They do not, however, interfere with nature itself (i.e., animals die, they are killed for food or clothing)—such is the way of the universe.
The Cat Lord from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Author Scott Greene, based on original material by Gary Gygax.
The Mouse Lord from the Tome of Horrors Complete, Copyright 2011, Necromancer Games, Inc., published and distributed by Frog God Games; Authors Scott Greene and Erica Balsley.