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Discuss the relationship between sexual selection and human reproductive behaviour. Charles Darwin's theory of natural selection proposed that at any time in which the natural environment exerts selective pressure on an individual. The pressure separates those who do fit into the environment from those who do. Fitness is the extent to which the individual's characteristics are adapted to its environmental niche. However natural selection can't explain why many animals develop exaggerated characteristics that appear to threaten rather than enhance the chances of survival. Darwin solved this problem with the sexual selection concept. Sexual selection is the selection of characteristics that are concerned solely with success of reproduction. In general the females of any given species tend to be the choosers whereas the males are the ones who compete to be selected. However this is different in humans where it is both the males and the females competing for selection. The 'sexy...

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