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The majority of hunter - gatherer societies are nomadic . It is difficult to be settled under such a subsistence system as the resources of one region can quickly become exhausted . Hunter - gatherer societies also tend to have very low population densities as a result of their subsistence system . Agricultural subsistence systems can support population densities 60 to 100 times greater than land left uncultivated , resulting in denser populations . Hunter - gatherer societies also tend to have non - hierarchical social structures , though this is not always the case . Because hunter - gatherers tend to be nomadic , they generally do not have the possibility to store surplus food . As a result , full - time leaders , bureaucrats , or artisans are rarely supported by hunter - gatherer societies .
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Hunter - gatherer societies tend to relocate frequently because the resources they depend on can become depleted quickly . Populations of hunter - gatherer societies tend to be lower and hunter - gatherer societies also tend to lack a social hierarchy because relocating makes it difficult to store food and support members of society that do not actively collect food full time such as leaders , bureaucrats , and artisans .