European Union | European Parliament | Member of the European Parliament | Society of Jesus | Royal Society | European Commission | National Geographic Society | American Cancer Society | European Space Agency | European | European Court of Human Rights | European Court of Justice | Royal Television Society | American Physical Society | European Economic Community | West Midlands (European Parliament constituency) | American Chemical Society | International Society for Krishna Consciousness | American Society of Civil Engineers | Royal Society of Canada | European People's Party | Royal Geographical Society | American Philosophical Society | Theosophical Society | Royal Society of Edinburgh | Indo-European languages | Society of Antiquaries of London | Society of the Cincinnati | Society for the Prevention of Cruelty to Animals | Party of European Socialists |
He is a Fellow of the American Psychological Association, Fellow of the American Association for the Advancement of Science, a member of the American Psychological Society, the National Association of Scholars, Human Behavior and Evolution Society, Southwestern Comparative Psychological Association, the Society for the Study of Social Policies, International Society for Research on Aggression, the European Sociobiological Society, and the Behavior Genetics Association.