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Theories Of Altruistic Behaviour

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Evaluate evolutionary accounts of altruistic behaviour, drawing upon more recent published papers as well as material covered in the core textbook.

One enduring question in social sciences and biology is the behaviour of altruism. In a common sense altruism is pro-social behaviour, which is positively seen in today’s society and acted out by helping and behaving favourably towards other individuals without any expectation of a reward.
Usually without an immediate external feedback, helping is considered to be rewarding in a sense that it activates the reward centres in the brain. Under evolutionary theory, the behaviour of altruism as the common trait of being unselfish makes little sense. However, the origin of altruism is far more benefit …show more content…
The two main sub-devisions are altruistic behaviour towards kins as well as altruistic co-operation between non-kins.

Firstly, inclusive fitness (Hamilton, 1963) was able to evolve by the cost of the altruist being outweighed by the benefits to the recipient, multiplied by the probability that the recipient carried a copy of genes of the altruist.

Therefore, kin selection is one explanation of the evolution of altruistic behaviour. In kin selection, the altruistic gene is looking to reproduce itself. Therefore, altruistic behaviour makes one individual aid another individual who shares the same genes. This way the chances of the individual’s own genes surviving are increased by helping a kin. For kin selection to work, kin recognition is needed to identify if the altruistic helping behaviour is only directed towards a kin. Accordingly, the care of a parent or sibling given to the offspring, would be forwarded by the offspring to their own offspring. Which furthermore would mean that the altruistic trait as well as the genes of the helper would be passed …show more content…
In competitive altruism, the status is wanted to be seen with a positive trait as well as a good reputation might lead to large return benefits as others might be more likely to help an altruist.

Competitive altruism as observed by Zahavi & Zahavi (1997) can be found in the animal kingdom in various different species. For instances, in arabian babblers altruism is a sign of good genes. Unrelated ‚helpers’ and parents feed the nestlings. These ‚helpers‘ are in constant competition of who can bring the most food to the nestlings with the other ‚helpers‘ in the swarm. Zahavi & Zahavi stated that the arabian babblers behaviour suggests that the male helpers are trying to show their good genes so that potential female breeding partners notice.

Another instance of competitive altruism can be observed due to the competition for social partners. These social partners, such as grooming partners are not only co-operating with each other but also in a constant, active contest with the potential partners of their population at all times. Related expositions for the instances of co-operative behaviour in constant groups of animals, were conducted by Roberts (1998), who uncovered this as an attempt of showing the ‚good‘, altruistic genes to gain a positive

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