Why do sleeping dogs look like they're running? Experts weigh in
CNN
Do our dogs really dream when they sleep? They certainly look like it. Animals' sleeping lives have sparked human curiosity for thousands of years, but clear answers have been elusive.
"When she's sleeping sometimes her paws are going aggressively -- like, frantically -- like she's running on an invisible treadmill," said owner Wudan Yan, who lives in Seattle.
"She's dreaming, right?" Yan said. "She's dreaming about chasing squirrels and bunnies."
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