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Smielowski, J. (1988). Breeding of the Grevy's Zebra at Polish zoological gardens. Przeglad Zool, 32, 595–597.
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Smuts, M. M. S., & Penzhorn, B. L. (1988). Descriptions of antomical differences between skulls and mandibles of Equus zebra and E. burchelli from southern Africa. South African Journal of Zoology, 23((4)3), 328–336.
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Thackeray, J. F. (1988). Zebras from wonderwerk cave, northern Cape province, South Africa: attempts to distinguish Equus burchelli and E. quagga. Suid- Afrikaanse Tydsskrif vir Wetenskap, 84, 99–101.
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Carroll, C. L., & Huntington, P. J. (1988). Body condition scoring and weight estimation of horses. Equine Vet J, 20(1), 41–45.
Abstract: Three hundred and seventy two horses of varying breeds, height and fatness were weighed and measured for height at the withers. They were assessed for condition score by adaptation of a previously published method. The heart girth and length of 281 of the horses were also measured. Weight of horses was highly correlated (P less than 0.001) with height (r2 = 0.62), condition score (r2 = 0.22) and girth2 x length (r2 = 0.90). Nomograms were constructed to predict weight from height and condition score, and girth and length measurements. Weight can also be accurately estimated from the formula: (formula, see text) The average value of 'Y' in this experiment was 11900 and this estimated weight with more accuracy than some previously published values of 'Y'. Racing Thoroughbred horses were found to be significantly lighter than non-racing Thoroughbreds of the same height and condition score. The method of assessment of condition score was shown to be repeatable between different operators with varying degrees of experience.
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Levin, L. E., & Grillet, M. E. (1988). [Diversified leadership: a social solution of problems in schools of fish]. Acta Cient Venez, 39(2), 175–180.
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Berger, J.,. (1988). Social systems, resources, and phylogenetic inertia: an experimental test and its limitations. In C. N. Slobochikoff (Ed.), Ecology of Social Behavior (pp. 157–186). San Diego: Academic Press.
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Byrne, R., & Whiten, A. (1988). Machiavellian Intelligence. Oxford: Oxford Univ Press.
Abstract: This book presents an alternative to conventional ideas about the evolution of the human intellect. Instead of placing top priority on the role of tools, the pressure for their skillful use, and the related importance of interpersonal communication as a means for enhanced cooperation, this<BR>volume explores quite a different idea-- that the driving force in the evolution of human intellect was social expertise--a force which enabled the manipulation of others within the social group, who themselves are seen as posing the most challenging problems faced by primitive humans. The need to<BR>outwit one's clever colleagues then produces an evolutionary spiraling of “Machiavellian intelligence.” The book forms a complete and self-contained text on this fast-growing topic. It includes the origins of the basic premise and a wealth of exciting developments, described by an international<BR>team of authors from the fields of anthropology, psychology, and zoology. An evaluation of more traditional approaches is also undertaken, with a view to discovering to what extent Machiavellian intelligence represents a complementary concept or one that is truly an alternative. Readers and<BR>students will find this fascinating volume carries them to the frontiers of scientific work on the origin of human intellect.
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Byrne, R., & Whiten, A. (1988). The machiavellian intelligence hypothesis:Editorial. In Machiavellian Intelligence (pp. 1–9). Oxford: Oxford Univ Press.
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Hauser M.D. (1988). Invention and social transmission: new data from wild vervet monkeys. In Machiavellian Intelligence (pp. 327–343). Oxford: Oxford Univ Press.
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Cheney, D. L., & Seyfarth, R. M. (1988). Social and non.social knowledge in vervet monkeys. In Machiavellian Intelligence (pp. 255–270). Oxford: Oxford Univ Press.
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