Articles in regional publications that pertain to a wide range of North Carolina-related topics.
Animals Do Yawn But Not Just Because They’re Sleepy
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26936
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Abstract:
The conventional yawn occurs when breathing slows down because of fatigue, inactivity or lack of sleep. Some animals yawn for convention, but for others, yawns are mere weapons in territorial battles. Lizards and fish open their mouths to threaten unwelcome invaders.
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