Behavioral ecologist Patricia Moehlman's two decades of field observations of two jackal species on the Serengeti Plain of Tanzania in East Africa are summarized in language easily understood by anyone unfamiliar with this community of creatures and with the findings of this world authority on jackals. Moehlman's color photographs of her subjects offer superb support to Pringle's absorbing report of Moehlman's work and studies showing that jackal behavior differs from that commonly attributed to them in folklore and fiction. Pringle explains Moelhlman's reluctance to use the radio collars and dart guns often employed to track and study many wildlife species, and he tells of her conservation work with others in Tanzania. (Ages 7-13)