Why is yawning contagious? Some scientists say it is a subconscious message spread amongst a pack of animals to communicate tiredness levels. Other theories suggest it helps cool the brain to try and stay awake. I'm not sure what to think, I'll sleep on it...
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6 comments:
Excellent interpretation of contagious. Great illustration!
indeed contagious.
Ha! Great piece...
Quite true! Love it.
Amazing illo ... just looking at it made me wanted to yawn.
XDDDD, nothing most contagious, you are right!
Nice illo, makes me yawn :-)
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