Constantine Slobodchikoff and colleagues synthesize the results of their long-running study of Gunnison's prairie dogs (Cynomys gunnisoni), one of the keystone species of the short-grass prairie ecosystem. They set their research in the context of the biology of the five Cynomys species found in the United States and Mexico, and detail their investigation into the prairie dogs' sophisticated system of barks, yips, and chirps, which Slobodchikoff argues represents a referential communication capable of fine distinctions among predators.

Seen as vermin that spoiled...