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Then how do you explain this obviously apparent behavior in humans?

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In the same way that other obviously apparant animal attributes (hair, tailbones, appendix) are present in humans.

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Why would God give us such qualities if they are only conducive to evil?


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We already know why such qualities are present. The more important question would be why would God give us, among other incredible qualities, reason, that does not exist in any other living thing on Earth? The ability to question whether something is morally right or wrong, in defiance of the selfish, "rational" innate desire?