The Territorial Imperative

The Territorial Imperative by Robert Ardrey, published in 1969 by Collins, is a provocative and influential work that examines the biological roots of territorial behaviour in both animals and human societies. First issued in 1966 and subsequently reprinted in this Collins edition, the book forms the second volume of Ardrey’s widely read Nature of Manseries. Building on the arguments introduced in African Genesis, Ardrey turns his attention to the concept of territory as a fundamental, inherited drive shaping social organisation, conflict and identity.

In The Territorial Imperative, Ardrey draws extensively on ethology and field studies of animal behaviour to argue that the defence of space is not merely a cultural construct but a deeply embedded evolutionary instinct. From wolf packs and antelope herds to primate groups, he traces patterns of territorial marking, boundary defence and dominance, suggesting parallels in human patterns of nationhood, property ownership and political conflict. Ardrey’s narrative combines travel writing, scientific reporting and philosophical reflection, making complex behavioural theories accessible to a general readership while retaining intellectual weight.

Readers of The Territorial Imperative will find a work that stimulated considerable debate in the late twentieth century, challenging prevailing views that human aggression and social structure were primarily products of environment and conditioning. Although aspects of Ardrey’s conclusions have been reassessed by later scholarship, the book remains an important milestone in popular evolutionary thought. The Territorial Imperative stands as a compelling period piece for collectors of behavioural science, anthropology and social theory, and for readers interested in the enduring question of how biology shapes civilisation.