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Why do dogs yawn when they see sleepy humans?

Dogs yawn in response to humans yawning

Watch this video Did it make you yawn? Well if it did then you’re not alone. Humans exhibit ‘contagious yawning’, where just seeing another individual makes you want to yawn yourself. Why we yawn at all isn’t entirely clear. Some say it helps keep us awake, others say it has a role in group communication – [...]

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