Question

Try to imagine what humans will be like in 500,000 years. What physical traits will change in modern Homo Sapiens? Why do you think that these changes will occur-what factors will lead to the evolution of new/different traits? Think about primarily physiological changes, but you may also include social or behavioral changes as a supplement. Which of the ‘four’ces of evolution will be most important for these changes as the human race continues to evolve and adapt?

Answer 1

Physical and genetic changes have occurred within our species and will continue to occur at a basic level as new genes evolve. However, these changes may not be as dramatic as they were in the past as the situation today does not favour the evolution of a new human species. Much of the beauty of the concept of evolution lies in its elegant simplicity. According to Charles Darwin's grand theory, the characteristics of populations or species can change over time if heritable variation exists, and if there are differences in reproductive success or survival rates. Therefore, in response to environmental pressures, the frequency of heritable characteristics will change from one generation to the next, and evolution by natural selection will take place.