Tom Werner/DigitalVision/Getty ImagesWe’ve all seen them do it — your dog digs around in your blankets for a while before settling in. Then, when they reach a deep sleep, they start moving their feet like they’re sprinting after something, or maybe away from something, because now they’re whining and barking a few tiny, muffled barks (so pitiful). It’s enough to make you wonder, do dogs have nightmares? I asked my dog and couldn’t get a straight answer, so instead I took the question to Erin Ray, DVM, veterinarian and assistant professor at Texas A&M University Veterinary Medical Teaching...
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