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In page Selknam genocide:

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The large ranchers tried to drive out the Selkʼnam, then began a campaign of extermination against them, with the complicity of the Argentine and Chilean governments.[1][2] Large companies paid sheep farmers or militia a bounty for each Selkʼnam dead, which was confirmed by the presentation of a pair of hands or ears, or later a complete skull.[1][3] They were given more for the death of a woman than a man.[citation needed] In addition, missionaries disrupted their livelihood through forcible relocation,[2][3] and inadvertently brought with them deadly epidemics.[3]