Hostname: page-component-8448b6f56d-jr42d Total loading time: 0 Render date: 2024-04-25T06:40:12.948Z Has data issue: false hasContentIssue false

Human ethology: concepts and implications for the sciences of man

Published online by Cambridge University Press:  19 May 2011

Irenäus Eibl-Eibesfeldt
Affiliation:
Forschungsstelle für Humanethologie, Max-Planck-lnstitut für Verhaltensphystologie, 8131 Seewiesen, Federal Republic of Germany

Abstract

Human ethology is defined as the biology of human behavior. The methods it employs and the questions it poses are elaborations of those generally used in the various fields of biology, but especially adapted to the study of man. Observation and experimentation in the natural and seminatural setting as well as the comparative method derived from morphology play important roles in human ethology, and the exploration of phylogenetic adaptations constitutes one of its focal interests. On the basis of observations on experientially deprived and nondeprived children, comparative primate and animal behavior studies, and cross-cultural investigations, certain universal phylogenetic adaptations (in terms of fixed action patterns, innate releasing mechanisms, releasers, innate motivating mechanisms, and innate learning dispositions) have been found to occur. However, human ethology does not restrict itself to the investigation of phylogenetic adaptations. The question as to how a behavior pattern contributes to survival can be posed with respect to cultural patterns as well. Similar selection pressures have shaped both culturally and phylogenetically evolved patterns. Through cross-cultural studies a number of universal social interaction strategies have been discovered.

Type
Target Article
Copyright
Copyright © Cambridge University Press 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Ainsworth, M. D. S.infancy in Uganda: Infant Care and the Growth of Love. Johns Hopkins Univ. Press, Baltimore, Md., 1967.Google Scholar
Argyle, M. and Cook, M.Gaze and Mutual Gaze, Cambridge Univ. Press, Cambridge, 1976.Google Scholar
Baerends, G. P., Brower, R., and Waterbolk, H. T.Ethological Studies on Lebistes reticulatus Peter: I. Analysis of the Male Courtship Pattern. Behaviour, 8: 249334, 1955.Google Scholar
Baerends, G. P., and Drent, R. H.The Herring Gull's Egg. Behaviour, 17 supplement, 1970.Google Scholar
Ball, W. and Tronick, E.infant Responses to Impending Collision: Optical and Real. Science 171: 818820, 1971.Google Scholar
Bateson, G. and Mead, M.Balinese Character: A Photographic Analysis. Special publication of the New York Academy of Sciences, II. New York, 1942.Google Scholar
Bentley, D. R.Genetic Control of an Insect Neuronal Network. Science, 174: 11391141, 1971.CrossRefGoogle ScholarPubMed
Bentley, D. R. and Hoy, R. R.Genetic Control of the Neuronal Network Generating Cricket Song Patterns. Animal Behaviour, 20: 478492, 1972.CrossRefGoogle ScholarPubMed
Bilz, R.Zur Grundlegung einer Paläopsychologie: I. Paläophysiologie: II. Paläopsychologie. Schweizerische Zeitschrift für Psychologie, 3: 202212, 272–280, 1944.Google Scholar
Blurton-Jones, N.Ethological Studies of Child Behaviour. Cambridge Univ. Press, Cambridge, 1972.Google Scholar
Bower, T. G.Slant Perception and Shape Constancy of Infants. Science 151: 832834, 1966.Google Scholar
The Object in the World of the Infant. Scientific American, 225:3038, 1971.CrossRefGoogle Scholar
A Primer of infant Development. Freeman, San Francisco, 1977.Google Scholar
Bowlby, J.Attachment and Loss: I. Attachment. Basic Books, New York, 1969.Google Scholar
Bullock, T. H.The Origins of Patterned Nervous Discharge. Behaviour, 17: 4859, 1961.Google Scholar
Bullock, T. H. and Horridge, G. A.Structure and Function in the Nervous System of invertebrates. 2 vols. Freeman, San Francisco, 1965.Google Scholar
Chance, M. R. A. and Larsen, R. R. (eds). The Social Structure of Attention. Wiley, London, 1976.Google Scholar
Coss, R. G. Eye-like Schemata: Their Effect on Behaviour. Thesis, Univ. of Reading, 1972.Google Scholar
Cullen, E.Experiments on the Effects of Social Isolation on Reproductive Behaviour in the Three-Spined Stickleback. Animal Behaviour, 8: 235, 1960.Google Scholar
Cutting, J. E. and Rosner, B.Categories and Boundaries in Speech and Music. Perception and Psychophysics, 16: 564570, 1974.CrossRefGoogle Scholar
Darwin, C.Origin of Species. Philosophical Library, New York, 1951 – Repr. 1st ed., 1859.Google Scholar
Dawkins, R.The Selfish Gene. Oxford Univ. Press, London, 1976.Google Scholar
Deag, J. M. and Crook, J. H.Social Behaviour and “Agonistic Buffering” in the Wild Barbary Macaque Macaca sylvana L. Folia Primatologica, 15: 183200, 1971.CrossRefGoogle ScholarPubMed
Eibl-Eibesfeldt, I.Nahrungserwerb und Beuteschema der Erdkröte (Bufo bufo L.). Behaviour 4: 135, 1951.Google Scholar
Ethologie, die Biologie des Verhaltens. In: Gessner, F. and Bertalanffy, L. von (eds.), Handbuch der Biologie, 2: 341359. Athenaion, Frankfurt, 1966.Google Scholar
Männliche und weibliche Schutzamulette im modernen Japan. Homo 21:175188, 1970.Google Scholar
Zur Ethologie menschlichen Gruβverhaltens: II. Das Gruβverhalten und einige andere Muster freundlicher Kontaktaufnahme der Waika-Indianer (Yanoama). Zeitschrift fur Tierpsychologie, 29:196213, 1971a.Google Scholar
Eine ethologische Interpretation des Palmfruchtfestes der Waika-Indianer (Yanoama) nebst Bemerkungen über die bindende Funktion des Zwiegespräches. Anthropos, 66:767778, 1971b.Google Scholar
Love and Hate. Holt, Rinehart and Winston, New York, 1972.Google Scholar
The Expressive Behaviour of the Deaf and Blind Born. In: Cranach, M. von and Vine, I. (eds.), Social Communication and Movement, 163193. Academic Press, London, 1973a.Google Scholar
Der vorprogrammierte Mensch: Das Ererbte als bestimmender Faktor im menschlichen Verhalten. (English translation: The Preprogrammed Man, Viking Press, New York, in press.) Molden, Wien, 1973b.Google Scholar
Medlpa – Courting Danee. Homo, 25:274284, 1974.CrossRefGoogle Scholar
Krieg und Frieden aus der Sicht der Verhaltensforschung. (English translation: The Biology of Peace and War, Viking Press, New York, in press.) Piper, München, 1975a.Google Scholar
Ethology: The Biology of Behavior. Holt, Rinehart and Winston, New York, 2nd ed., 1975b.Google Scholar
Menschenforschung auf neuen Wegen. Molden, Wien, 1976.Google Scholar
Evolution of Destructive Aggression. Aggressive Behaviour, 3:127144, 1977.Google Scholar
Ritual and Ritualisation from a Biological Perspective. In: Cranach, M. von et al. (eds.), Human Ethology - Claims and Limits of a New Discipline (Symposium of the Werner Reimers Foundation, Bad Homburg, October 25–29, 1977). Cambridge Univ. Press, Cambridge, in press, 1979.Google Scholar
Eibl-Eibesfeldt, I. and Hass, H.Zum Projekt einer ethologisch orientierten Un-tersuchung menschlichen Verhaltens. Mitteilungen der Max-Planck-Ge-sellschaft, 6: 383396, 1966.Google Scholar
Neue Wege der Humanethologie. Homo, 18:1323, 1967.Google Scholar
Eibl-Eibesfeldt, I. and Wickler, W.Die ethologische Deutung einiger Wäch-terfiguren auf Bali. Zietschrift für Tierpsychologie, 25: 719726, 1968.Google Scholar
Eisenberg, L. Persistent Problems in the Study of the Biopsychology of Development. In: Tobach, E., Aronson, L., and Shaw, E. (eds.), The Biopsychology of Development, 515529. Academic Press, New York, 1971.Google Scholar
Ekman, P., Friesen, W., and Ellsworth, P. Emotions in the Human Face. Per-gamon, New York, 1972.Google Scholar
Elsner, N. and Huber, F.Neurale Grundlagen artspezifischer Kommunikation bei Orthopteren. Fortschritte der Zoologie, 22: 148, 1973.Google Scholar
Ewert, J. P.The Neural Basis of Visually Guided Behavior. Scientific American, 230: 3442, 1974.Google Scholar
Fentress, J. C. (ed.) Simpler Networks and Behavior. Sinauer, Sunderland, Mass., 1976.Google Scholar
Gardner, B. T. and Wallach, L.Shapes of Figures Identified as a Baby's Head. Perceptual and Motor Skills, 20: 135142, 1965.CrossRefGoogle ScholarPubMed
Ghosh, S. Towards a Grammar of Greetings. In: Heilmann, L. (ed.), Proceedings of the Eleventh International Congress of Linguistics (Bologna-Florence, Aug. 28-Sept. 2, 1972), 545559. Società Editrice il Mulino, Bologna, 1972.Google Scholar
Goffman, E.Behavior in Public Places: Notes on the Social Organisation of Gatherings. Free Press, New York, 1966.Google Scholar
Relations in Public. Allen Lane, Penguin Press, London, 1971.Google Scholar
Grobstein, P. and Chow, K. L.Receptive Field Development and Individual Experience. Science, 190: 352358. 1975.Google Scholar
Hall, K. R. R.Social Learning in Monkeys, Journal of Zoology, 148: 1587, 1966.CrossRefGoogle Scholar
Hamilton, W. D.The Genetical Theory of Social Behavior. Journal of Theoretical Biology, 7: 152, 1964.CrossRefGoogle Scholar
Harris, M.Cannibals and Kings: The Origins of Cultures. Random House, New York, 1977.Google Scholar
Heeschen, V., Schiefenhövel, W., and Eibl-Eibesfeldt, I. Requesting, Giving and Taking: The Relationship between Verbal and Nonverbal Behavior in the Speech Community of the Eipo, Irian Jaya (West New Guinea). In: Key, R. M. (ed.), Verbal and Nonverbal Communication. Mouton, The Hague, in press.Google Scholar
Hess, E.Imprinting. Van Nostrand, New York, 1973.Google Scholar
Hinde, R.Animal Behaviour: A Synthesis of Ethology and Comparative Psychology. McGraw-Hill, New York/London, 1966.Google Scholar
Hold, B. Attention and Rank-Order Behaviours in Preschool Children. In: Chance, M. R. A., and Larsen, R. R. (eds.), The Structure of Social Attention, 177201. Wiley, London, 1976.Google Scholar
Holst, E. von.Über den Prozeβ der zentralen Koordination. Pflügers Archiv, 326: 149158, 1935.CrossRefGoogle Scholar
Holzkamp-Osterkamp, U.Grundlagen der psychologischen Motivationsfor-schung. Campus, Frankfurt, 1975.Google Scholar
Hooff, J. A. R. A. M. van.Aspecten van Het Sociale Gedrag En de Communicatie Bij Humane En Hogere Niet-Humane Primaten. (Aspects of the Social Behaviour and Communication in Human and Higher Non-Human Primates). Bronder-Offset, Rotterdam, 1971.Google Scholar
Hückstedt, B. Experimentelle Untersuchungen zum “Kindschenschema.” Zeitschrift fuer experimentelle und Angewandte Psychologie, 12: 421450, 1965.Google Scholar
Huxley, J. S.Courtship Activities in the Red-Throated Diver (Colymbus stella-tus Pontop): Together with a Discussion of the Evolution of Courtship in Birds, journal of the Linnean Society in London, Zoology, 53: 253292, 1923.Google Scholar
Ikeda, K. and Kaplan, W. O.Unilaterally Patterned Neural Activity of a Mutant Gynandromorph of Drosophila melanogaster. American Zoologist, 10: 311, 1970.Google Scholar
Immelmann, K.Zur Irreversibilität der Prägung. Die Naturwissenschaften, 53: 209, 1966.Google Scholar
Koehler, O. and Zagarus, A.Beiträge zum Brutverhalten des Halsbandregen-pfeifers (Charadrius hiaticula L.). Beiträge zur Fortpflanzungsbiologie der Vögel, 13: 19 1937.Google Scholar
Koenig, O.Urrnotive Auge: Neuentedeckte Grundzüge menschlichen Verhaltens. Piper, München, 1975.Google Scholar
Konishi, M.Effects of Deafening on Song Development in Two Species of Juncos. Condor, 66: 85102, 1964.Google Scholar
Effects of Deafening on Song Development of American Robins and Black-Headed Grosbeaks. Zeitschrift für Tierpsychologie, 22:584599, 1965a.Google Scholar
The role of Auditory Feedback in the Control of Vocalization in the White-Crowned Sparrow. Zeitschrift für Tierpsychologie, 22:770783, 1965b.Google Scholar
Konner, M. J. Aspects of the Developmental Ethology of a Foraging People. In: Blurton-Jones, N. G. (ed.) Ethological Studies of Child Behaviour. Cambridge Univ. Press, Cambridge, 1972.Google Scholar
Kortlandt, A.New Perspectives on Ape and Human Evolution. Stichting voor Psychobiologie, Zoologisch Laboratorium, Amsterdam, 1972.Google Scholar
Lawick-Goodall, J. van. The Behaviour of the Chimpanzee. In: Kurth, G. and Eibl-Eibesfeldt, I. (eds.), Hominisation und Verhalten, 7490. Fischer, Stuttgart, 1975.Google Scholar
Lehrman, D. S.A Critique of Konrad Lorenz's Theory of Instinctive Behavior. Quarterly Review of Biology, 28: 337363, 1953.Google Scholar
Liberman, A. M. and Pisoni, D. B. Evidence for a Special Speechperceiving Subsystem in the Human. In: Bullock, T. H. (ed.), Recognition of Complex Acoustic Signals. Life Sciences Research Report 5: 5976. Berlin-Dahlem Konferenzen, 1977.Google Scholar
Lorenz, K.Der Kumpan in der Umwelt des Vogels. Journal of Ornithology 83: 137413, 1935.CrossRefGoogle Scholar
Die angeborenen Formen möglicher Erfahrung. Zeitschrift für Tierpsychologie, 5:235409, 1943.CrossRefGoogle Scholar
Die Entwicklung der vergleichenden Verhaltensforschung in den letzten 12 Jahren. Zoologischer Anzeiger, supplement 16:3658, 1953.Google Scholar
Evolution and Modification of Behavior. Chicago Univ. Press, Chicago, 1965.Google Scholar
Stammes- und kulturgeschichtliche Ritenbildung. Mitteilungen der Max-Planck-Gesellschaft, 1:330; Naturwissenschaftliche Rundschau, 19:361–370, 1966.Google Scholar
Der Mensch biologisch gesehen. Eine Antwort an Wolfgang Schmidbauer. Studium Generale, 24: 495515, 1971.Google Scholar
Marier, P. Developments in the Study of Animal Communication. In: Bell, P. R. (ed.), Darwin's Biological Work, 150206. Cambridge Univ. Press, Cambridge, 1959.Google Scholar
Development of Auditory Perception in Relation to Vocal Behavior. In: Cranach, M. von et al. (eds.), Human Ethology - Claims and Limits of a New Discipline (Symposium of the Werner Reimers Foundation, Bad Homburg, October 25–29, 1977). Cambridge Univ. Press, Cambridge, in press, 1979.Google Scholar
March, P., Rosser, E., and Harré, R.The Rules of Disorder. Routledge & Kegan Paul, London, 1978.Google Scholar
Massey, A.Agonistic Aids and Kinship in a Group of Pigtail Macaques. Behavioral Ecology and Social Biology, 2: 3140, 1977.Google Scholar
McGrew, W. C.An Ethological Study of Children's Behavior. Academic Press, London, 1972.Google Scholar
McPhail, J. D.Predation and the Evolution of a Stickleback (Gasterosteus). Journal of Fisheries Research Board of Canada, 26: 31833208, 1969.Google Scholar
Meltzoff, A. N. and Moore, M. K.Imitation of Facial and Manual Gestures by Human Neonates. Science, 198: 7578, 1977.CrossRefGoogle ScholarPubMed
Montagu, A.Man and Aggression. Oxford Univ. Press, New York, 1968.Google Scholar
The Nature of Human Aggression. Oxford Univ. Press, New York, 1976.Google Scholar
Morath, M.Differences in the Non-Crying Vocalizations of Infants in the First Four Months of Life. Neuropädiatrie, 8 supplement: 543545, 1977.CrossRefGoogle Scholar
Morris, D.The Naked Ape: A Zoologist's Study of the Human Animal. McGraw-Hill, New York, 1968.Google Scholar
Manwatching: A Field Guide to Human Behavior. Abrams, New York/Jonathan Cape, London/Elsevier, Lausanne, 1977.Google Scholar
Murray, L. Infants' Capacities for Regulating Interactions with Their Mothers and the Function of Emotions. Thesis, Univ. of Edinburgh. See Trevarthen, C, 1977.Google Scholar
Newman, J. and McCauley, C.Eye Contact with Strangers in City, Suburb and Small Town. Environment and Behavior, 9: 547558, 1977.CrossRefGoogle Scholar
Pastore, R. E. Categorical and Perception: A Critical Re-evaluation. In: Hirsch, S. K. et al. (eds.), Hearing and Davis: Essays Honoring Hallowell Davis. Washington Univ. Press, St. Louis, Mo., 1976.Google Scholar
Pearson, K. G.Central Programming and Reflex Control of Walking in the Cockroach. Journal of Experimental Biology, 56: 173193, 1972.Google Scholar
Pitcairn, T. K. and Schleidt, M.Dance and Decision: An Analysis of a Courtship Dance of the Medlpa, New Guinea. Behaviour, 58: 298316 (1976)CrossRefGoogle Scholar
Ploog, D., Hopf, S., and Winter, P.Ontogenese des Verhaltens von Totenkopf-Affen (Saimiri sciureus). Psychologische Forschung, 31: 141, 1967.CrossRefGoogle ScholarPubMed
Ploog, D., Blitz, J. and Ploog, F.Studies on Social and Sexual Behavior of the Squirrel Monkey (Saimiri Sciureus). Folia Primatologica, 1: 2966, 1963.Google Scholar
Rajecki, D. W., Lamb, M. E., and Obmascher, P.Toward a General Theory of Infantile Attachment: A Comparative Review of Aspects of the Social Bond. Behavioral and Brain Sciences, 1(3):000–000, 1978.CrossRefGoogle Scholar
Rheingold, H. and Eckerman, C. Fear of the Stranger: A Critical Examination. In: Reese, H. (ed.), Advances in Child Development and Behavior, 8, Academic Press. New York, 1973.Google Scholar
Roeder, K. D.Spontaneous Activity and Behavior. Scientific Monthly, 80: 362370, 1955.Google Scholar
Rothmann, M. and Teuber, E.Einzelausgabe der Anthropoidenstation auf Teneriffa: I. Ziele und Aufgaben der Station sowie erste Beobachtungen an den auf ihr gehaltenen Schimpansen, 120. Abhandlungen Preus-sische Akademie der Wissenschaften, Berlin, 1915.Google Scholar
Sackett, G. P.Monkeys Reared in Isolation with Pictures as Visual Input: Evidence for an Innate Releasing Mechanism. Science, 154: 14681473, 1966.Google Scholar
Sauer, F.Die Entwicklung der Lautäuδerungen vom Ei ab schalldicht gehal-tener Dorngrasmücken (Sylvia c. communis Latham). Zeitsckrift für Tierpsychologie, 11: 193, 1954Google Scholar
Schenkel, R.Ausdrucksstudien an Wölfen. Behaviour, 1: 81129, 1947.Google Scholar
Schleidt, W. M., Schleidt, M., and Magg, M.Störungen Mutter-Kind-Bezie-hung bei Truthühnern durch Gehörverlust. Behaviour, 16: 254260, 1960.Google Scholar
Seitz, A.Die Paarbildung bei einigene Zichliden. Zeitschrift für Tierpsychologie, 4: 4084, 1940.Google Scholar
Shafton, A.Conditions of Awareness: Subjective Factors in the Social Adaptations of Man and Other Primates. Riverston Press, Portland, Oreg., 1976.Google Scholar
Sorenson, E. R.A Research Film Program in the Study of Changing Man: Research Filmed Material as a Foundation for Continued Study of Non-recurring Human Events. Current Anthropology, 8: 443469, 1967.Google Scholar
The Edge of the Forest: Land, Childhood and Change in a New Guinea Protoagricultural Society. Smithsonian Inst. Press, Washington, D.C., 1976.Google Scholar
Sorenson, E. R. and Gajdusek, D. C.The Study of Child Behavior and Development in Primitive Cultures. Pediatrics, supplement 37: 149243, 1966.Google Scholar
Spemann, H.Embryonic Development and Induction. Yale Univ. Press, New Haven, 1938.Google Scholar
Sperry, R. W.The Problem of Central Nervous Reorganization after Nerve Regeneration and Muscle Transposition. Quarterly Review of Biology, 20: 311369, 1945a.Google Scholar
Restoration of Vision after Crossing of Optic Nerves and after Contralateral Transplantation of Eye. Journal of Neurophysiology, 8:1528, 1945b.Google Scholar
Selective Communication in Nerve Nets: Impulse Specificity vs. Connection Specificity. Neuroscience Research Program Bulletin., 3:3743, 1965.Google Scholar
How a Brain Gets Wired for Adaptive Function, In: Tobach, E., Aron-son, L. R., and Shaw, E. (eds.): The Biopsychology of Development, 2744, Academic Press, London, 1971.Google Scholar
Sroufe, L. A.Wariness of Stranger and the Study of Infant Development. Child Development, 48: 731746, 1977.Google Scholar
Stanjek, K.Das Überreichen von Gaben: Funktion und Entwicklung in den ersten Lebensjahren. Zeitschrift für Entwicklungspsychologie und Päda-gogische Psychologie, 10: 103113, 1978.Google Scholar
Taub, E. and Berman, A. J. The Effect of Massive Somatic Deafferentiation on Behavior and Wakefulness in Monkeys. Papers Presented at Psychonomic Science Meeting October 1964. Niagara, Ont., 1964.Google Scholar
Teleki, G.The Predatory Behavior of the Chimpanzees. Bucknell Univ. Press, Lewisburg, Pa., 1973a.Google Scholar
The Omnivorous Chimpanzee. Scientific American, 228:3242, 1973b.CrossRefGoogle Scholar
Thorpe, W. H.Bird Song: The Biology of Vocal Communication and Expression in Birds. Cambridge Univ. Press, Cambridge, 1961.Google Scholar
Tiger, L.Men in Groups. Random House, New York, 1969.Google Scholar
Ions of Emotion and Political Behavior: Notes on Prototheory. In: Somit, A (ed.), Biology and Politics, 263267. Mouton, Paris, 1976.Google Scholar
Tinbergen, N.The Study of Instinct. Oxford Univ. Press, London, 1951. Tiere untereinander. Parey, Berlin, 1955.Google Scholar
Tinbergen, N., Broekhuysen, G. J., Feekes, F., Houghton, J. C. W., Kruuk, H., and Szulc, E.Eggshell Removal by the Blackheaded Gull (Larus ridibun-dus L.), a Behaviour Component of Camouflage. Behaviour, 19: 74117, 1962.Google Scholar
Tobach, E.Evolution of Behavior and the Comparative Method. International Journal of Psychology, 11: 185201, 1976.Google Scholar
Tobach, E., Gianutsos, J., Topoff, H. R., and Gross, C. G.The Four Horsemen: Racism, Militarism and Social Darwinism. Behavioral Publications, New York, 1974.Google Scholar
Trevarthen, C. Instincts for Human Understanding and for Cultural Cooperation: Their Development in Infancy. In: Cranach, M. von et al. (eds.), Human Ethology - Claims and Limits of a New Discipline (Symposium of the Werner Reimers Foundation, Bad Homburg, October 25–29, 1977). Cambridge Univ. Press, Cambridge, in press, 1978.Google Scholar
Wickler, W. Socio-Sexual Signals and their Intraspecific Imitation among Primates. In: Morris, D. (ed.), Primate Ethology, 69147. Weidenfeld and Ni-colson, London, 1967a.Google Scholar
Vergleichende Verhaltensforschung und Phylogenetik. In: Heberer, G. (ed.), Die Evolution der Organismen, 420508. Fischer, Stuttgart, 1967b.Google Scholar
Wiessner, P. A Regional System of Reciprocity for Reducing Risk among the! Kung-San. Thesis, Univ. of Michigan, Ann Arbor, 1977.Google Scholar
Wilson, E. O.Sociobiology: The New Synthesis. Belknap Press - Harvard Univ. Press, Cambridge, Mass. 1975.Google Scholar
The Social Instinct. Bulletin of the American Academy of Arts and Sci., 30:1125, 1976.Google Scholar