Further, the definition of intelligent behaviour depends largely on the culture in which it is expressed. What may be considered intelligent behaviour in one culture may be irrelevant in another. Societies tend to 'teach' individuals information which is important, for example the !King tribe of Africa's Kalahari Desert considers knowledge of animals and their behaviour as intelligent, whereas the comprehension of mathematics and problem-solving abilities are considered as intelligent in Western cultures [CITATION Bur091 p 335-336 t l 3081 ].
Although the definition of intelligence is difficult, it is not impossible, and we shall adopt a general definition of intelligence for our discussion. We thus define intelligence as the ability to apply "cognitive skills and knowledge to learn, solve problems and obtain ends that are valued by an individual or culture"[ CITATION Bur091 l 3081 ]. However, it should be remembered that our discussion surrounding intelligence is limited insofar as our definition of it remains broad and ambiguous. Nature refers to the biological basis of psychology. This includes DNA which contains the blueprint for cell differentiation and development across the life span. Nature also refers to the heritability of traits, or the extent to which an attribute is passed on to offspring through their parents' genes. Nature has also been extended to refer to the 'innateness' of an individual, otherwise known as behavioural instincts. An example of this it the 'fight-or-flight' response first proposed by Walter Cannon, which describes the initial physiological response an individual experiences when confronted with a threatening stimulus. .
In the context of the nature/nurture debate, nurture refers to an individual's own experience. This includes societal factors such as education, access to health care and nutrition as well as family environment and working conditions.