Inbred Dogs Help Us Learn About Human Diseases

Inbred Dogs Help Us Learn About Human Diseases
AP Photo/Jeff Chiu

Though dog slobber can be gross, it turns out the DNA in your dog's kisses is actually a treasure trove of genetic evidence that could help scientists determine and treat the causes of diseases in dogs – and humans.

Human bodies – and in fact, the bodies of all animals, including dogs – need copper. That's because many proteins require copper to function properly.

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