Describe the contribution of a biological perspective to our understanding of behaviour.

What makes humans different from animals? How can we explain the individual differences in our species? Although biological psychologists argue that behaviour may be explained by evolution, development, genetics and physiology, social psychologists have commented upon the influence of social, emotional, cognitive and psychological changes when interpreting behaviour. Therefore, with the use of examples, this essay will attempt to show that while much of the understanding human behaviour may stem from a biological perspective; other psychological influences are also responsible for modifying human behaviour patterns….(short extract)