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Observations on the evolution of the genitalia and copulatory behavior in male primates


, : Observations on the evolution of the genitalia and copulatory behavior in male primates. Journal of Zoology (London) 213(3): 423-444

Comparative studies of genital anatomy and sexual behaviour in male primates show that penile morphology and copulatory patterns tend to be more specialized in species which have multimale or dispersed (non-gregarious) mating system. The penis may be longer and more complex morphologically in such species. Copulatory patterns involving a series of intromissions or prolonged single intromissions are more common than in species with a monogamous or polygynous mating system. Elongation of the baculum occurs in species which prolong intromission into the post-ejaculatory period. Sexual selection may have favoured the evolution of such features in species where females mate with a number of males rather than with a single partner. Relative testis size is also greatest under such conditions and larger testes occur in some non-gregarious or seasonally breeding prosimians, as well as in anthropoids with multimale mating systems.

US$19.90

DOI: 10.1111/j.1469-7998.1987.tb03718.x


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Henninger C.; Bailly L.; Clouet P.; Danh H.C.; Pascal M.; Bezard J., 1986: Influence of fenofibrate on the carnitine content of several organs in the zucker obese rat. Cahiers de Nutrition et de Dietetique 21(6): 439

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Buckmaster, D.R.; Muller, L.D., 1992: How do we characterize an adequate TMR mix?. Characteristics and measures to quantify feed mix uniformity are discussed and results from one TMR mixer experiment are presented. Coeff. of variation, in combination with the number of samples, for several TMR mix characteristics were useful for...

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Demeter, K.J.; Kundrat, W.; Faber, A.-Gunde.; Schellner, H.; Hahn, H., 1959: Bacterial destruction in cheese milk treated by the H2O2-catalase method. part I. Saprophytic bacteria. Part II. Pathogenic bacteria.. On treatment of cheese milk with 0.2% solution of Perhydrol (30% solution) the numbers of acid-producing bacteria were reduced during the first 20 min. and then remained stable, greater numbers of the non-acid producers were inactivated, the colif...