Yes, some animals yawn. Don’t know which ones though. Although i am positive that i’ve seen a dog yawn before.
Animals yawn for the same reason humans do – while there are many theories (none proven), the one that makes the most sense is that yawns are a cooling mechanism. One theory that has been disproven is that yawning is our body’s way of making us take in more oxygen. Studies have shown that test subjects holding hot packs to their foreheads yawn much more frequently than those holding cold packs to their foreheads. If brains (human and animal) are like computer CPUs, then yawning is the emergency fan.
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