srd
SRD
These creatures operate on instinct, driven by simple needs such as food and reproduction. Except where noted, vermin attack only when hungry or threatened.
Vermin Traits: Vermin possess the following traits (unless otherwise noted in a creature’s entry).
—Mindless: No Intelligence score, and immunity to all mind-affecting effects (charms, compulsions, phantasms, patterns, and morale effects).
—Darkvision out to 60 feet.
—Alignment: Always neutral. Vermin are not governed by a human sense of morality.
—Treasure: Vermin generally possess no treasure. For those that do, this treasure consists of possessions formerly owned by a creature that the monster has killed.
Open Game Content from the System Reference Document 3.5, used under the Open Game License 1.0a.