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 D20
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This article is a D20 reference page
The System Reference Document is a comprehensive toolbox consisting of rules, races, classes, feats, skills, various systems, spells, magic items, and monsters compatible with the d20 System version of Dungeons & Dragons and various other roleplaying games from Wizards of the Coast.
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Organization
This line describes the kinds of groups the creature might form. A range of numbers in parentheses indicates how many combat-ready adults are in each type of group. Many groups also have a number of noncombatants, expressed as a percentage of the fighting population. Noncombatants can include young, the infirm, slaves, or other individuals who are not inclined to fight. If the organization line contains the term “domesticated,” the creature is generally found only in the company of other creatures, whom it serves in some capacity.
System Reference Document -> Reading Creature Entries (SRD)