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Can dogs smell fear?

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Scientist had already shown that dogs can see signs of human emotions.

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Scientist had already shown that dogs can see signs of human emotions.

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They found that the dogs’ facial expressions varied the most when the person was looking at them.

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They found that the dogs’ facial expressions varied the most when the person was looking at them.

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Dogs have remarkable olfactory ability and can be trained to smell a chemical at very low concentration

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Dogs have remarkable olfactory ability and can be trained to smell a chemical at very low concentration

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 dogs are most likely to ignore someone who is not moving

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 dogs are most likely to ignore someone who is not moving

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Dogs are estimated to have scenting abilities hundreds or even thousands of times greater than humans

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Dogs are estimated to have scenting abilities hundreds or even thousands of times greater than humans