Aggression and violence exist for a reason in nature, as part of animals' natural defence systems. However, different types of violence exist according to the situation. Scientists such as Dr Blanchard from Hawaii, are beginning to understand the differing neural pathways involved.

What are the differing types of aggression? How does understanding them help us control their effects? And are there still evolutionary advantages to proverbally beating your chest?

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	Science of Aggression - Bad Behaviour