Comparative Study of the Sperm Morphology of South American Primates and Those of the Old World
Primate species exist today in four regions of the world: in South America, Africa, Madagascar and Southeast Asia, all separated by water expanses of differing magnitudes. Various theories have been proposed as to how these species, if derived from a common ancestor, could have populated such widely separated areas of the world. Recent resurgence of interest in Wegener’s theory of continental drift (Hallam, 1973) has revived an interest in global migration of various species during the late Mesozoic and Cenozoic Eras. It is the purpose of this chapter to use some parameters of comparative sperm morphology to seek evidence of the means by which catarrhine (Old World) and platyrrhine (New World) primates achieved their present biogeographic distribution. To this end this study has been specifically directed toward an investigation of the phylogenetic relationships of cercopithecoid (catarrhine) and ceboid (platyrrhine) species based on analysis of their sperm morphology.
KeywordsPrimate Species World Monkey Sperm Head Sperm Morphology Continental Drift
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