From publisher blurb:
Warriors of the Wild is a fantasy d20 product line designed for both players and game masters. It offers well-balanced and thoroughly play-tested classes constructed around various animal, natural, and tribal themes. These classes are perfect for any combat-heavy game, be it in dungeons, cities, the wilderness, or other planes.
This product features the wolfpack hunter, a prestige class ideal for rangers, but also suitable for any character with an animal companion. Together with his mystically empowered wolf companion, the wolfpack hunter leads his pack of wolves into battle and relentlessly hunts his preys.