How Can Animals Detect How Humans Are Feeling?

The video discusses a study showing dogs can distinguish between stressed and calm humans through smell, with a 94% success rate. Dogs have a superior sense of smell due to more olfactory receptors and brain regions dedicated to processing smells. They can detect diseases like cancer and COVID-19. Other animals, such as rats and pigeons, also show potential in disease detection. This ability could lead to earlier detection of illnesses.

What did the study published in the Plus One journal reveal about dogs' ability to distinguish between human emotions?

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How do dogs' olfactory receptors compare to those of humans?

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What types of diseases have dogs been trained to detect?

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What changes in the human body can affect how we smell when we are sick?

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What other animals, besides dogs, have been trained to detect diseases, and what diseases can they identify?

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