The Evolution Of The Genus Homo, The Hominins Went Through Great Patterns Of Evolution Over Generations

1376 Words Nov 23rd, 2015 null Page
Since the emergence of the genus Homo, the hominins went through great patterns of evolution over generations. Through series of adaptations, the genus Homo spread in various geographic locations and eventually emerged as anatomically modern humans. With the allele frequency changes that evolved in the genus Homo, there is key evidence that microevolution led to macroevolution. From speciation to extinction, the modern synthesis helps us explain not only the mechanisms of evolution and the reproductive barriers between species, but also the various social adaptations that changed the hominins over time. From 2mya to ca. 0.2 mya, there is evidence for evolutionary derived adaptations that the genus Homo gradually evolved over generations. Microevolutionary forces such as natural selection and genetic drift play a crucial role in understanding the patterns of speciation, which is the formation of multiple species from an ancestor. According to Wood and Reisenberg (2001), “advances in investigative techniques have allowed us to overcome these inherent limitations and make inferences about the processes of species formation” (p. 1). This greatly supports the hypothesis in explaining the changes of the hominins. The genetic drift explains the founder effect and shapes the reproductive barriers for species in populations. In fact, the genetic variations of different geographic locations are significant factors that indicate how Homo sapiens emerged. For Homo sapiens, evolution…

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